Information for Area Code: 617-xxx-xxxx - MA - MASSACHUSETTS

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Resources

Information about Area Code 617

Area code 617
All Massachusetts area codes
All Massachusetts area codes
Location
Location of area code 617
Location of area code 617
Statistics
Created 1947
LATA Code 128
Overlays Area code 857
Major Cities Boston
Cambridge
Regions Boston Metro Area
Time zone Eastern (UTC-5)
Summer (DST) Eastern (UTC-4)

Area code 617 once covered the entire Greater Boston (Eastern Massachusetts) area, reaching beyond the I-495 loop. It now covers only the city of Boston and some immediate suburbs. When the demand for phone numbers in the Boston area skyrocketed due to dial-up Internet service providers and other growth, area code 508 split off in 1988, with the immediate vicinity of the city (roughly inside of Route 128) keeping the code 617. Area code 617 split again in 1997, with area code 781 assigned to the further-out areas. Subsequently, area code 857 was added as an overlay to parts of area code 617. The original 617 area code (now 617/857+781/339+508/774+978/351) lines up with the Eastern Massachusetts LATA #128.

Exchanges

The following table lists all local exchanges for area code 617:

Area Code Exchange City/Town it covers Zip Code
617 200 Not Used
617 201 Boston 02215
617 202
617 203 Boston 02210
617 204 Boston 02107
617 205
617 206 Not Used
617 207
617 208 Cambridge 02141
617 209 South Boston 02127
617 210 Boston 02109
617 211 Not Used
617 212 Boston 02215
617 213 Cambridge 02141
617 214 Hyde Park 02136
617 215 Newton 02160
617 216
617 217 Boston 02210
617 218 Cambridge 02141
617 219 Newton 02160
617 220 Not Used
617 221 Cambridge 02138
617 222 Boston 02114
617 223 Boston 02114
617 224 Cambridge 02141
617 225 Cambridge 02141
617 226 Cambridge 02138
617 227 Boston 02114
617 228 Boston 02114
617 229 Not Used
617 230 Not Used
617 231 Boston 02110
617 232 Brookline 02146
617 233
617 234 Cambridge 02138
617 235 Boston 02107
617 236 Boston 02115
617 237 South Boston 02127
617 238 Boston 02210
617 239 Cambridge 02141
617 240
617 241 Boston 02114
617 242 Boston 02114
617 243 Newton 02160
617 244 Newton 02160
617 245 Boston 02110
617 246 Boston 02114
617 247 Boston 02115
617 248 Boston 02114
617 249 Cambridge 02141
617 250 Cambridge 02141
617 251
617 252 Cambridge 02141
617 253 Cambridge 02141
617 254 Brighton 02135
617 255 Boston 02109
617 256
617 257
617 258 Cambridge 02141
617 259 Not Used
617 260 Cambridge 02141
617 261 Boston 02107
617 262 Boston 02115
617 263 Boston 02114
617 264 Brookline 02146
617 265 Dorchester 02122
617 266 Boston 02115
617 267 Boston 02115
617 268 South Boston 02127
617 269 South Boston 02127
617 270
617 271
617 272 Boston 02199
617 273 Cambridge 02142
617 274 Boston 02110
617 275 Cambridge 02141
617 276 South Boston 02127
617 277 Brookline 02146
617 278 Brookline 02146
617 279 Cambridge 02141
617 280 Not Used
617 281 Cambridge 02141
617 282 Dorchester 02122
617 283
617 284 Somerville 02143
617 285 Saugus
617 286 Cambridge 02138
617 287 Dorchester 02122
617 288 Dorchester 02122
617 289 Boston 02107
617 290
617 291
617 292 Boston 02109
617 293 Not Used
617 294
617 295 Boston 02107
617 296 Milton 02186
617 297 Boston 02110
617 298 Milton 02186
617 299 Cambridge 02141
617 300 Cambridge 02141
617 301 Not Used
617 302
617 303
617 304
617 305 Boston 02114
617 306
617 307
617 308
617 309 Cambridge 02138
617 310 Boston 02107
617 311 Not Used
617 312 West Roxbury 02132
617 313
617 314 Cambridge 02142
617 315 Cambridge 02141
617 316 Boston 02110
617 317
617 318
617 319 Not Used
617 320
617 321 Charlestown 02129
617 322
617 323 West Roxbury 02132
617 324 Cambridge 02141
617 325 West Roxbury 02132
617 326 Cambridge 02141
617 327 West Roxbury 02132
617 328 Quincy 02169
617 329 South Boston 02127
617 330 Boston 02107
617 331 Not Used
617 332 Newton 02160
617 333 Hyde Park 02136
617 334 South Boston 02127
617 335
617 336 Boston 02110
617 337 South Boston 02127
617 338 Boston 02109
617 339 Cambridge 02138
617 340
617 341 Boston 02107
617 342 Boston 02107
617 343 Boston 02115
617 344 Quincy 02169
617 345 Boston 02107
617 346 Boston 02107
617 347 Cambridge 02141
617 348 Boston 02109
617 349 Cambridge 02138
617 350 Boston 02109
617 351 Boston 02115
617 352 Boston 02115
617 353 Boston 02115
617 354 Cambridge 02138
617 355 Brookline 02146
617 356 Boston 02115
617 357 Boston 02109
617 358 Boston 02115
617 359
617 360 Hyde Park 02136
617 361 Hyde Park 02136
617 362 Hyde Park 02136
617 363 West Roxbury 02132
617 364 Hyde Park 02136
617 365 Cambridge 02141
617 366 Boston 02114
617 367 Boston 02114
617 368 Boston 02109
617 369 Boston 02115
617 370 Cambridge 02141
617 371 Boston 02114
617 372 Boston 02114
617 373 Boston 02115
617 374 Cambridge 02141
617 375 Boston 02115
617 376 Quincy 02169
617 377 Boston 02115
617 378 Boston 02110
617 379 South Boston 02127
617 380 Boston 02110
617 381 Everett 02149
617 382
617 383 Not Used
617 384 Cambridge 02138
617 385 Boston 02110
617 386 Not Used
617 387 Everett 02149
617 388
617 389 Everett 02149
617 390 Boston 02199
617 391
617 392 Boston 02110
617 393 South Boston 02127
617 394
617 395 Cambridge 02142
617 396
617 397 Cambridge 02141
617 398 Cambridge 02141
617 399 Boston 02210
617 400
617 401 Quincy 02169
617 402
617 403 Brighton 02135
617 404 Belmont 02478
617 405 Cambridge 02141
617 406 Boston 02110
617 407 Boston
617 408 Hyde Park 02136
617 409 Cambridge 02138
617 410 Cambridge 02138
617 411 Not Used
617 412 Not Used
617 413 West Roxbury 02132
617 414 Boston 02115
617 415 Boston 02199
617 416
617 417
617 418 Cambridge 02141
617 419 Cambridge 02141
617 420 Boston 02199
617 421 Boston 02115
617 422 Boston 02109
617 423 Boston 02109
617 424 Boston 02115
617 425 Boston 02115
617 426 Boston 02109
617 427 Roxbury 02119
617 428 Boston 02107
617 429
617 430 Cambridge 02138
617 431
617 432 Brookline 02115
617 433 Boston 02110
617 434 Boston 02107
617 435
617 436 Dorchester 02122
617 437 Boston 02115
617 438 Boston 02215
617 439 Boston 02107
617 440
617 441 Cambridge 02138
617 442 Roxbury 02119
617 443 Boston 02107
617 444 Cambridge 02141
617 445 Roxbury 02119
617 446 Boston 02210
617 447 West Roxbury 02132
617 448 West Roxbury 02132
617 449 Boston 02199
617 450 Boston 02115
617 451 Boston 02109
617 452 Cambridge 02141
617 453
617 454 Cambridge 02141
617 455
617 456 Charlestown 02129
617 457 Boston 02109
617 458
617 459
617 460
617 461
617 462 Cambridge 02141
617 463 South Boston 02127
617 464 South Boston 02127
617 465 Cambridge 02138
617 466
617 467
617 468 Cambridge 02138
617 469 West Roxbury 02132
617 470
617 471 Quincy 02169
617 472 Quincy 02169
617 473 Newton 02160
617 474 Dorchester 02122
617 475 Not Used
617 476 Boston 02110
617 477 Cambridge 02141
617 478 Boston 02107
617 479 Quincy 02169
617 480
617 481
617 482 Boston 02109
617 483 Quincy 02169
617 484 Belmont 02478
617 485 Cambridge 02141
617 486 Belmont 02478
617 487 Not Used
617 488 Boston 02110
617 489 Belmont 02478
617 490 Boston 02114
617 491 Cambridge 02138
617 492 Cambridge 02138
617 493 Cambridge 02138
617 494 Cambridge 02141
617 495 Cambridge 02138
617 496 Cambridge 02138
617 497 Cambridge 02138
617 498 Cambridge 02138
617 499 Cambridge 02138
617 500 Cambridge 02141
617 501
617 502 Not Used
617 503 Cambridge 02138
617 504 Cambridge 02141
617 505 Cambridge 02141
617 506
617 507 Quincy 02169
617 508 Cambridge 02141
617 509 Quincy 02169
617 510
617 511 Not Used
617 512 West Roxbury 02132
617 513
617 514 Cambridge 02141
617 515
617 516 Cambridge 02141
617 517 Boston 02110
617 518 Cambridge 02141
617 519 Boston 02115
617 520 Cambridge 02138
617 521 Boston 02109
617 522 Jamaica Plain 02130
617 523 Boston 02114
617 524 Jamaica Plain 02119
617 525 Brookline 02146
617 526 Boston 02107
617 527 Newton 02160
617 528 Cambridge 02141
617 529
617 530 Boston 02110
617 531 Cambridge 02141
617 532 Boston 02110
617 533 Dorchester 02122
617 534 Boston 02115
617 535 Boston 02199
617 536 Boston 02115
617 537 Quincy 02169
617 538 Cambridge 02141
617 539 Winthrop 02152
617 540 Cambridge 02138
617 541 Roxbury 02119
617 542 Boston 02109
617 543
617 544
617 545 Cambridge 02141
617 546 Newton 02160
617 547 Cambridge 02138
617 548
617 549
617 550 Not Used
617 551 Cambridge 02141
617 552 Newton 02160
617 553 South Boston 02127
617 554 Not Used
617 555 Cambridge 02141
617 556 Boston 02109
617 557 Boston 02114
617 558 Newton 02160
617 559 Newton 02160
617 560 Brighton 02135
617 561 East Boston 02128
617 562 Brighton 02135
617 563 Boston 02110
617 564 Boston 02110
617 565 Boston 02114
617 566 Brookline 02146
617 567 East Boston 02128
617 568 East Boston 02128
617 569 East Boston 02128
617 570 Boston 02114
617 571 West Roxbury 02132
617 572 Boston 02115
617 573 Boston 02114
617 574 Boston 02109
617 575 Not Used
617 576 Cambridge 02138
617 577 Cambridge 02141
617 578 Boston 02115
617 579 Boston 02115
617 580 Boston 02199
617 581
617 582 Brookline 02146
617 583 Cambridge 02142
617 584 Cambridge 02141
617 585 Boston 02115
617 586
617 587 Boston 02115
617 588 Cambridge 02141
617 589 Boston 02114
617 590 Not Used
617 591 Somerville 02143
617 592 Not Used
617 593 Not Used
617 594 Not Used
617 595
617 596
617 597 Boston 02210
617 598 Boston 02110
617 599 Cambridge 02138
617 600 Boston 02199
617 601
617 602 Cambridge 02141
617 603 Cambridge 02141
617 604 Hyde Park 02136
617 605
617 606 Cambridge 02141
617 607 Cambridge 02141
617 608 Boston 02210
617 609 Newton 02160
617 610 Cambridge 02141
617 611 Not Used
617 612 Cambridge 02141
617 613 Cambridge 02141
617 614 Cambridge 02141
617 615 South Boston 02127
617 616 Cambridge 02141
617 617 Not Used
617 618 Boston 02199
617 619 Boston 02114
617 620 West Roxbury 02132
617 621 Cambridge 02141
617 622 Boston 02110
617 623 Somerville 02143
617 624 Boston 02114
617 625 Somerville 02143
617 626 Boston 02114
617 627 Somerville 02143
617 628 Somerville 02143
617 629 Somerville 02143
617 630 Newton 02160
617 631 Cambridge 02141
617 632 Brookline 02146
617 633 Cambridge 02141
617 634 Chelsea 02150
617 635 Boston 02114
617 636 Boston 02109
617 637 Boston 02109
617 638 Boston 02115
617 639 Cambridge 02142
617 640 Cambridge 02141
617 641 Newton 02160
617 642 Not Used
617 643 Boston 02114
617 644 Newton 02160
617 645 West Roxbury 02132
617 646 Boston 02110
617 647 Cambridge 02141
617 648 Boston 02110
617 649 Boston 02210
617 650
617 651 Boston 02110
617 652 Boston 02199
617 653 Cambridge 02141
617 654 Boston 02109
617 655 Newton 02160
617 656 Newton 02160
617 657
617 658 Boston 02110
617 659 Newton 02160
617 660 Chelsea 02150
617 661 Cambridge 02138
617 662 Boston 02107
617 663 Cambridge 02141
617 664 Boston 02107
617 665 Cambridge 02138
617 666 Somerville 02143
617 667 Brookline 02146
617 668 Boston 02210
617 669 Cambridge 02141
617 670 South Boston 02127
617 671 Boston 02215
617 672
617 673 Watertown 02472
617 674 Not Used
617 675 Hyde Park 02136
617 676 Boston 02110
617 677
617 678
617 679 Cambridge 02141
617 680 West Roxbury 02132
617 681 Cambridge 02141
617 682
617 683 Boston 02115
617 684 Boston 02210
617 685 Cambridge 02138
617 686 West Roxbury 02132
617 687 Quincy 02169
617 688 Brockton 02402
617 689 Quincy 02169
617 690 Boston 02110
617 691 Boston 02210
617 692 Boston 02110
617 693 Cambridge 02141
617 694 West Roxbury 02132
617 695 Boston 02109
617 696 Milton 02186
617 697
617 698 Milton 02186
617 699 West Roxbury 02132
617 700 Not Used
617 701 Cambridge 02141
617 702 Boston 02199
617 703 Cambridge 02138
617 704 Boston 02199
617 705 Hyde Park 02136
617 706 Boston 02199
617 707
617 708 South Boston 02127
617 709 Not Used
617 710
617 711 Not Used
617 712 Cambridge 02141
617 713 Brookline 02146
617 714 Cambridge 02141
617 715 Boston 02110
617 716 Cambridge 02141
617 717 Cambridge 02141
617 718 South Boston 02127
617 719 Not Used
617 720 Boston 02114
617 721 West Roxbury 02132
617 722 Boston 02114
617 723 Boston 02114
617 724 Boston 02114
617 725 Boston 02114
617 726 Boston 02114
617 727 Boston 02114
617 728 Boston 02109
617 729 Boston 02110
617 730 Brookline 02146
617 731 Brookline 02146
617 732 Brookline 02146
617 733 West Roxbury 02132
617 734 Brookline 02146
617 735 Brookline 02146
617 736 Not Used
617 737 Boston 02107
617 738 Brookline 02146
617 739 Brookline 02146
617 740 Dorchester 02122
617 741 Boston 02110
617 742 Boston 02114
617 743 Boston 02107
617 744
617 745 Quincy 02169
617 746 Brighton 02135
617 747 Boston 02110
617 748 Boston 02107
617 749 Boston 02110
617 750 Cambridge 02141
617 751 Boston 02110
617 752 Boston 02199
617 753 Boston 02109
617 754 Brookline 02146
617 755
617 756
617 757 Boston 02107
617 758 Not Used
617 759 Cambridge 02141
617 760 Boston 02109
617 761 Cambridge 02141
617 762 Boston 02110
617 763
617 764
617 765 Cambridge 02141
617 766 Boston 02210
617 767
617 768 Cambridge 02138
617 769 Quincy 02169
617 770 Quincy 02169
617 771
617 772 Boston 02107
617 773 Quincy 02169
617 774 Quincy 02169
617 775 Cambridge 02141
617 776 Somerville 02143
617 777 Boston 02215
617 778
617 779 Brighton 02135
617 780 West Roxbury 02132
617 781 Not Used
617 782 Allston 02134
617 783 Allston 02134
617 784
617 785
617 786 Quincy 02169
617 787 Allston 02134
617 788 Boston 02114
617 789 Brighton 02135
617 790 Boston 02107
617 791
617 792 Not Used
617 793 Boston 02110
617 794
617 795 South Boston 02127
617 796 Newton 02160
617 797
617 798 Cambridge 02138
617 799 Boston 02215
617 800 South Boston 02127
617 801 Charlestown 02129
617 802 Cambridge 02138
617 803
617 804 Quincy 02169
617 805 Not Used
617 806 Cambridge 02138
617 807 Not Used
617 808 Not Used
617 809 Not Used
617 810 Not Used
617 811 Not Used
617 812 Quincy 02169
617 813 Not Used
617 814 Cambridge 02141
617 815 Not Used
617 816
617 817
617 818 Not Used
617 819 Boston 02199
617 820 Cambridge 02142
617 821
617 822 Dorchester 02122
617 823
617 824 Boston 02110
617 825 Dorchester 02122
617 826 Boston 02110
617 827 Cambridge 02141
617 828 Not Used
617 829
617 830 Boston 02110
617 831 Cambridge 02141
617 832 Boston 02109
617 833
617 834
617 835
617 836
617 837 Not Used
617 838
617 839
617 840
617 841 Boston 02110
617 842 Cambridge 02141
617 843 Boston 02110
617 844 Cambridge 02138
617 845 Boston 02210
617 846 Winthrop 02152
617 847 Quincy 02169
617 848 Cambridge 02142
617 849
617 850 Boston 02110
617 851
617 852
617 853
617 854 Boston 02114
617 855 Belmont 02478
617 856 Boston 02107
617 857 Not Used
617 858 Cambridge 02141
617 859 Boston 02115
617 860 Cambridge 02141
617 861
617 862
617 863 Somerville 02143
617 864 Cambridge 02138
617 865 Boston 02115
617 866 Cambridge 02141
617 867 Boston 02115
617 868 Cambridge 02138
617 869
617 870 Cambridge 02142
617 871
617 872
617 873 Cambridge 02138
617 874 Boston 02199
617 875
617 876 Cambridge 02138
617 877
617 878 Boston 02114
617 879 South Boston 02127
617 880 Boston 02110
617 881 Newton 02160
617 882 Newton 02160
617 883 Belmont 02478
617 884 Chelsea 02150
617 885 Newton 02160
617 886 Boston 02114
617 887 Chelsea 02150
617 888 Boston 02215
617 889 Chelsea 02150
617 890 Cambridge 02141
617 891
617 892 Cambridge 02141
617 893
617 894 West Roxbury 02132
617 895 Boston 02110
617 896 Cambridge 02141
617 897 Boston 02107
617 898 Milton 02186
617 899
617 900 Not Used
617 901
617 902 Charlestown 02129
617 903
617 904 Charlestown 02129
617 905
617 906 Cambridge 02142
617 907
617 908 Boston 02215
617 909
617 910
617 911 Not Used
617 912 Boston 02110
617 913 West Roxbury 02132
617 914 Boston 02199
617 915 Cambridge 02142
617 916
617 917 Cambridge 02141
617 918 Boston 02114
617 919 Boston 02115
617 920 Not Used
617 921
617 922
617 923 Watertown 02472
617 924 Watertown 02472
617 925 Boston 02110
617 926 Watertown 02472
617 927 Boston 02115
617 928 Newton 02160
617 929 Dorchester 02122
617 930 Cambridge 02141
617 931 Cambridge 02141
617 932 Cambridge 02141
617 933 Boston 02110
617 934 Cambridge 02141
617 935
617 936 Boston 02109
617 937 Boston 02115
617 938 Cambridge 02142
617 939
617 940 Not Used
617 941 Cambridge 02141
617 942 Boston 02110
617 943
617 944
617 945
617 946 Boston 02107
617 947 West Roxbury 02132
617 948 South Boston 02127
617 949 Boston 02199
617 950 Not Used
617 951 Boston 02107
617 952
617 953 Not Used
617 954 Boston 02115
617 955 Not Used
617 956 Boston 02109
617 957
617 958 Boston 02110
617 959 Not Used
617 960 Boston 02199
617 961 Boston 02114
617 962 Cambridge 02141
617 963 Not Used
617 964 Newton 02160
617 965 Newton 02160
617 966 Cambridge 02141
617 967 Cambridge 02141
617 968 Cambridge 02141
617 969 Newton 02160
617 970
617 971 Roxbury 02119
617 972 Watertown 02472
617 973 Boston 02114
617 974 Cambridge 02141
617 975 Brookline 02146
617 976 Not Used
617 977 Cambridge 02141
617 978 Cambridge 02141
617 979 Boston 02110
617 980
617 981 South Boston 02127
617 982 Boston 02114
617 983 Roxbury 02119
617 984 Quincy 02169
617 985 Quincy 02169
617 986 Charlestown 02129
617 987 South Boston 02127
617 988 Boston 02109
617 989 Roxbury 02119
617 990 Cambridge 02142
617 991 Boston 02199
617 992 Cambridge 02141
617 993 Belmont 02478
617 994 Boston 02114
617 995 Cambridge 02141
617 996 Cambridge 02142
617 997 Cambridge 02141
617 998 Cambridge 02138
617 999 Cambridge 02141

See also


Exchanges for Area Code 617-xxx-xxxx:

Exchange 617-200
-

Exchange 617-201
Boston - NEXTEL COMMUNICATIONS

Exchange 617-202
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-203
BOSTON - ALLEGIANCE TELECOM, INC. - MA

Exchange 617-204
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-205
Franklin - NORFOLK COUNTY INTERNET, INC.

Exchange 617-206
- MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-207
LOWELL - COMCAST PHONE OF MASSACHUSETTS, INC. - MA

Exchange 617-208
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-209
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-210
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-211
-

Exchange 617-212
Boston - NEXTEL COMMUNICATIONS

Exchange 617-213
Cambridge - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-214
HYDE PARK - VERIZON NEW ENGLAND INC.

Exchange 617-215
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-216
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-217
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-218
Cambridge - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-219
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-220
- VERIZON NEW ENGLAND INC.

Exchange 617-221
CAMBRIDGE - CTC COMMUNICATIONS- MA

Exchange 617-222
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-223
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-224
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-225
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-226
CAMBRIDGE - CTC COMMUNICATIONS- MA

Exchange 617-227
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-228
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-229
- MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-230
- OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-231
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-232
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-233
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-234
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-235
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-236
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-237
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-238
BOSTON - ALLEGIANCE TELECOM, INC. - MA

Exchange 617-239
Cambridge - AT&T LOCAL

Exchange 617-240
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-241
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-242
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-243
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-244
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-245
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-246
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-247
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-248
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-249
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-250
Cambridge - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-251
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-252
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-253
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-254
BRIGHTON - VERIZON NEW ENGLAND INC.

Exchange 617-255
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-256
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-257
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-258
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-259
- OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-260
CAMBRIDGE -

Exchange 617-261
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-262
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-263
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-264
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-265
DORCHESTER - VERIZON NEW ENGLAND INC.

Exchange 617-266
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-267
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-268
SOUTH BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-269
SOUTH BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-270
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-271
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-272
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-273
Cambridge - FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-274
BOSTON - PAETEC COMMUNICATIONS, INC.

Exchange 617-275
CAMBRIDGE - LEVEL 3 COMMUNICATIONS, LLC - MA

Exchange 617-276
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-277
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-278
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-279
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-280
- NEP, LLC

Exchange 617-281
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-282
DORCHESTER - VERIZON NEW ENGLAND INC.

Exchange 617-283
- AT&T WIRELESS SERVICES, INC.

Exchange 617-284
SOMERVILLE - VERIZON NEW ENGLAND INC.

Exchange 617-285
North Billerica - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-286
CAMBRIDGE - CTC COMMUNICATIONS- MA

Exchange 617-287
DORCHESTER - VERIZON NEW ENGLAND INC.

Exchange 617-288
DORCHESTER - VERIZON NEW ENGLAND INC.

Exchange 617-289
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-290
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-291
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-292
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-293
- NEXTEL COMMUNICATIONS

Exchange 617-294
NEEDHAM - COMCAST PHONE OF MASSACHUSETTS, INC. - MA

Exchange 617-295
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-296
MILTON - VERIZON NEW ENGLAND INC.

Exchange 617-297
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-298
MILTON - VERIZON NEW ENGLAND INC.

Exchange 617-299
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-300
Cambridge - AT&T LOCAL

Exchange 617-301
- SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-302
WALTHAM - SBC TELECOM, INC. - MA

Exchange 617-303
Portsmouth - WINSTAR COMMUNICATIONS, LLC - MA

Exchange 617-304
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-305
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-306
- AT&T WIRELESS SERVICES, INC.

Exchange 617-307
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-308
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-309
CAMBRIDGE - CTC COMMUNICATIONS- MA

Exchange 617-310
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-311
-

Exchange 617-312
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-313
Bedford - RNK, INC.

Exchange 617-314
Cambridge - FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-315
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-316
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-317
Franklin - NORFOLK COUNTY INTERNET, INC.

Exchange 617-318
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-319
- OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-320
- AT&T WIRELESS SERVICES, INC.

Exchange 617-321
CHARLESTOWN - BROADVIEW NETWORKS, INC. - MA

Exchange 617-322
NEEDHAM - COMCAST PHONE OF MASSACHUSETTS, INC. - MA

Exchange 617-323
WEST ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-324
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-325
WEST ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-326
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-327
WEST ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-328
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-329
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-330
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-331
- OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-332
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-333
HYDE PARK - VERIZON NEW ENGLAND INC.

Exchange 617-334
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-335
- AT&T WIRELESS SERVICES, INC.

Exchange 617-336
BOSTON - PAETEC COMMUNICATIONS, INC.

Exchange 617-337
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-338
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-339
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-340
Worcester - LIGHTSHIP TELECOM, LLC

Exchange 617-341
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-342
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-343
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-344
QUINCY - GLOBAL NAPS, INC.-MA

Exchange 617-345
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-346
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-347
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-348
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-349
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-350
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-351
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-352
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-353
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-354
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-355
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-356
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-357
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-358
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-359
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-360
HYDE PARK - VERIZON NEW ENGLAND INC.

Exchange 617-361
HYDE PARK - VERIZON NEW ENGLAND INC.

Exchange 617-362
HYDE PARK - VERIZON NEW ENGLAND INC.

Exchange 617-363
WEST ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-364
HYDE PARK - VERIZON NEW ENGLAND INC.

Exchange 617-365
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-366
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-367
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-368
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-369
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-370
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-371
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-372
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-373
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-374
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-375
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-376
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-377
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-378
BOSTON - ACC NATIONAL TELECOM CORPORATION - MA

Exchange 617-379
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-380
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-381
MALDEN - VERIZON NEW ENGLAND INC.

Exchange 617-382
MALDEN - VERIZON NEW ENGLAND INC.

Exchange 617-383
- CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-384
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-385
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-386
Cambridge - AT&T LOCAL

Exchange 617-387
MALDEN - VERIZON NEW ENGLAND INC.

Exchange 617-388
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-389
MALDEN - VERIZON NEW ENGLAND INC.

Exchange 617-390
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-391
Woburn - METROCALL

Exchange 617-392
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-393
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-394
MALDEN - VERIZON NEW ENGLAND INC.

Exchange 617-395
Cambridge - FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-396
Foxboro - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-397
Cambridge - AT&T LOCAL

Exchange 617-398
Cambridge - AT&T LOCAL

Exchange 617-399
BOSTON - ALLEGIANCE TELECOM, INC. - MA

Exchange 617-400
Franklin - NORFOLK COUNTY INTERNET, INC.

Exchange 617-401
QUINCY - GLOBAL NAPS, INC.-MA

Exchange 617-402
Bedford - RNK, INC.

Exchange 617-403
BRIGHTON - VERIZON NEW ENGLAND INC.

Exchange 617-404
BELMONT - VERIZON NEW ENGLAND INC.

Exchange 617-405
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-406
BOSTON - ACC NATIONAL TELECOM CORPORATION - MA

Exchange 617-407
- OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-408
HYDE PARK - VERIZON NEW ENGLAND INC.

Exchange 617-409
CAMBRIDGE - CTC COMMUNICATIONS- MA

Exchange 617-410
CAMBRIDGE - CTC COMMUNICATIONS- MA

Exchange 617-411
-

Exchange 617-412
- OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-413
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-414
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-415
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-416
- AT&T WIRELESS SERVICES, INC.

Exchange 617-417
- AT&T WIRELESS SERVICES, INC.

Exchange 617-418
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-419
Cambridge - NEXTWAVE TELECOM, INC DBA NEXTWAVE WIRELESS

Exchange 617-420
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-421
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-422
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-423
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-424
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-425
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-426
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-427
ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-428
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-429
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-430
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-431
LOWELL - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-432
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-433
BOSTON - ACC NATIONAL TELECOM CORPORATION - MA

Exchange 617-434
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-435
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-436
DORCHESTER - VERIZON NEW ENGLAND INC.

Exchange 617-437
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-438
Boston - NEXTEL COMMUNICATIONS

Exchange 617-439
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-440
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-441
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-442
ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-443
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-444
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-445
ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-446
BOSTON - ALLEGIANCE TELECOM, INC. - MA

Exchange 617-447
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-448
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-449
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-450
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-451
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-452
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-453
Bedford - RNK, INC.

Exchange 617-454
Cambridge - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-455
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-456
CHARLESTOWN - BROADVIEW NETWORKS, INC. - MA

Exchange 617-457
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-458
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-459
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-460
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-461
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-462
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-463
SOUTH BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-464
SOUTH BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-465
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-466
NEEDHAM - COMCAST PHONE OF MASSACHUSETTS, INC. - MA

Exchange 617-467
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-468
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-469
WEST ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-470
- AT&T WIRELESS SERVICES, INC.

Exchange 617-471
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-472
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-473
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-474
DORCHESTER - VERIZON NEW ENGLAND INC.

Exchange 617-475
- MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-476
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-477
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-478
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-479
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-480
- AT&T WIRELESS SERVICES, INC.

Exchange 617-481
NEEDHAM - COMCAST PHONE OF MASSACHUSETTS, INC. - MA

Exchange 617-482
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-483
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-484
BELMONT - VERIZON NEW ENGLAND INC.

Exchange 617-485
Cambridge - AT&T LOCAL

Exchange 617-486
BELMONT - VERIZON NEW ENGLAND INC.

Exchange 617-487
- TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-488
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-489
BELMONT - VERIZON NEW ENGLAND INC.

Exchange 617-490
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-491
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-492
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-493
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-494
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-495
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-496
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-497
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-498
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-499
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-500
CAMBRIDGE - LEVEL 3 COMMUNICATIONS, LLC - MA

Exchange 617-501
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-502
- PAETEC COMMUNICATIONS, INC.

Exchange 617-503
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-504
Cambridge - SPRINT SPECTRUM L.P.

Exchange 617-505
CAMBRIDGE - LEVEL 3 COMMUNICATIONS, LLC - MA

Exchange 617-506
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-507
QUINCY - GLOBAL NAPS, INC.-MA

Exchange 617-508
CAMBRIDGE -

Exchange 617-509
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-510
- AT&T WIRELESS SERVICES, INC.

Exchange 617-511
-

Exchange 617-512
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-513
- AT&T WIRELESS SERVICES, INC.

Exchange 617-514
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-515
- AT&T WIRELESS SERVICES, INC.

Exchange 617-516
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-517
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-518
Cambridge - NEXTWAVE TELECOM, INC DBA NEXTWAVE WIRELESS

Exchange 617-519
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-520
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-521
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-522
ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-523
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-524
ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-525
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-526
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-527
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-528
Cambridge - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-529
North Billerica - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-530
BOSTON - ACC NATIONAL TELECOM CORPORATION - MA

Exchange 617-531
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-532
BOSTON - PAETEC COMMUNICATIONS, INC.

Exchange 617-533
DORCHESTER - VERIZON NEW ENGLAND INC.

Exchange 617-534
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-535
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-536
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-537
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-538
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-539
WINTHROP - VERIZON NEW ENGLAND INC.

Exchange 617-540
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-541
ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-542
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-543
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-544
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-545
Cambridge - AT&T LOCAL

Exchange 617-546
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-547
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-548
North Billerica - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-549
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-550
-

Exchange 617-551
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-552
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-553
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-554
-

Exchange 617-555
Cambridge - VERIZON NEW ENGLAND INC.

Exchange 617-556
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-557
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-558
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-559
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-560
BRIGHTON - VERIZON NEW ENGLAND INC.

Exchange 617-561
EAST BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-562
BRIGHTON - VERIZON NEW ENGLAND INC.

Exchange 617-563
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-564
BOSTON - PAETEC COMMUNICATIONS, INC.

Exchange 617-565
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-566
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-567
EAST BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-568
EAST BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-569
EAST BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-570
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-571
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-572
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-573
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-574
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-575
- VERIZON NEW ENGLAND INC.

Exchange 617-576
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-577
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-578
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-579
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-580
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-581
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-582
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-583
Cambridge - FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-584
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-585
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-586
Bedford - RNK, INC.

Exchange 617-587
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-588
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-589
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-590
- NEXTEL COMMUNICATIONS

Exchange 617-591
SOMERVILLE - VERIZON NEW ENGLAND INC.

Exchange 617-592
- NEXTEL COMMUNICATIONS

Exchange 617-593
- NEXTEL COMMUNICATIONS

Exchange 617-594
- NEXTEL COMMUNICATIONS

Exchange 617-595
Fort Washington - VERIZON NEW ENGLAND INC.

Exchange 617-596
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-597
BOSTON - ALLEGIANCE TELECOM, INC. - MA

Exchange 617-598
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-599
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-600
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-601
Franklin - NORFOLK COUNTY INTERNET, INC.

Exchange 617-602
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-603
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-604
HYDE PARK - VERIZON NEW ENGLAND INC.

Exchange 617-605
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-606
CAMBRIDGE - LEVEL 3 COMMUNICATIONS, LLC - MA

Exchange 617-607
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-608
BOSTON - ALLEGIANCE TELECOM, INC. - MA

Exchange 617-609
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-610
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-611
-

Exchange 617-612
Cambridge - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-613
Cambridge - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-614
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-615
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-616
Cambridge - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-617
-

Exchange 617-618
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-619
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-620
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-621
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-622
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-623
SOMERVILLE - VERIZON NEW ENGLAND INC.

Exchange 617-624
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-625
SOMERVILLE - VERIZON NEW ENGLAND INC.

Exchange 617-626
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-627
SOMERVILLE - VERIZON NEW ENGLAND INC.

Exchange 617-628
SOMERVILLE - VERIZON NEW ENGLAND INC.

Exchange 617-629
SOMERVILLE - VERIZON NEW ENGLAND INC.

Exchange 617-630
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-631
Cambridge - AT&T LOCAL

Exchange 617-632
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-633
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-634
CHELSEA - VERIZON NEW ENGLAND INC.

Exchange 617-635
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-636
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-637
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-638
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-639
Cambridge - FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-640
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-641
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-642
- OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-643
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-644
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-645
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-646
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-647
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-648
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-649
BOSTON - ALLEGIANCE TELECOM, INC. - MA

Exchange 617-650
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-651
BOSTON - PAETEC COMMUNICATIONS, INC.

Exchange 617-652
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-653
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-654
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-655
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-656
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-657
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-658
BOSTON - PAETEC COMMUNICATIONS, INC.

Exchange 617-659
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-660
CHELSEA - VERIZON NEW ENGLAND INC.

Exchange 617-661
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-662
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-663
Cambridge - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-664
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-665
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-666
SOMERVILLE - VERIZON NEW ENGLAND INC.

Exchange 617-667
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-668
BOSTON - ALLEGIANCE TELECOM, INC. - MA

Exchange 617-669
Cambridge - OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-670
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-671
Boston - NEXTEL BOOST INVESTMENT, INC.

Exchange 617-672
Woburn - METROCALL

Exchange 617-673
WATERTOWN - VERIZON NEW ENGLAND INC.

Exchange 617-674
- DSCI CORPORATION - MA

Exchange 617-675
HYDE PARK - VERIZON NEW ENGLAND INC.

Exchange 617-676
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-677
Franklin - NORFOLK COUNTY INTERNET, INC.

Exchange 617-678
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-679
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-680
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-681
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-682
WALTHAM - SBC TELECOM, INC. - MA

Exchange 617-683
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-684
BOSTON - ALLEGIANCE TELECOM, INC. - MA

Exchange 617-685
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-686
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-687
QUINCY - GLOBAL NAPS, INC.-MA

Exchange 617-688
BROCKTON - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-689
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-690
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-691
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-692
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-693
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-694
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-695
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-696
MILTON - VERIZON NEW ENGLAND INC.

Exchange 617-697
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-698
MILTON - VERIZON NEW ENGLAND INC.

Exchange 617-699
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-700
-

Exchange 617-701
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-702
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-703
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-704
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-705
HYDE PARK - VERIZON NEW ENGLAND INC.

Exchange 617-706
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-707
Franklin - NORFOLK COUNTY INTERNET, INC.

Exchange 617-708
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-709
-

Exchange 617-710
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-711
-

Exchange 617-712
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-713
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-714
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-715
BOSTON - PAETEC COMMUNICATIONS, INC.

Exchange 617-716
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-717
Cambridge - AT&T LOCAL

Exchange 617-718
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-719
- NEXTEL COMMUNICATIONS

Exchange 617-720
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-721
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-722
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-723
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-724
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-725
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-726
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-727
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-728
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-729
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-730
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-731
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-732
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-733
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-734
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-735
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-736
-

Exchange 617-737
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-738
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-739
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-740
DORCHESTER - VERIZON NEW ENGLAND INC.

Exchange 617-741
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-742
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-743
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-744
NEEDHAM - COMCAST PHONE OF MASSACHUSETTS, INC. - MA

Exchange 617-745
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-746
BRIGHTON - VERIZON NEW ENGLAND INC.

Exchange 617-747
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-748
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-749
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-750
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-751
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-752
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-753
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-754
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-755
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-756
WOBURN - METROCALL

Exchange 617-757
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-758
- BROADVIEW NETWORKS, INC. - MA

Exchange 617-759
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-760
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-761
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-762
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-763
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-764
NEEDHAM - COMCAST PHONE OF MASSACHUSETTS, INC. - MA

Exchange 617-765
CAMBRIDGE - LEVEL 3 COMMUNICATIONS, LLC - MA

Exchange 617-766
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-767
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-768
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-769
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-770
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-771
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-772
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-773
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-774
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-775
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-776
SOMERVILLE - VERIZON NEW ENGLAND INC.

Exchange 617-777
Boston - NEXTEL COMMUNICATIONS

Exchange 617-778
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-779
BRIGHTON - VERIZON NEW ENGLAND INC.

Exchange 617-780
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-781
-

Exchange 617-782
BRIGHTON - VERIZON NEW ENGLAND INC.

Exchange 617-783
BRIGHTON - VERIZON NEW ENGLAND INC.

Exchange 617-784
- AT&T WIRELESS SERVICES, INC.

Exchange 617-785
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-786
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-787
BRIGHTON - VERIZON NEW ENGLAND INC.

Exchange 617-788
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-789
BRIGHTON - VERIZON NEW ENGLAND INC.

Exchange 617-790
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-791
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-792
- OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-793
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-794
- AT&T WIRELESS SERVICES, INC.

Exchange 617-795
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-796
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-797
North Billerica - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-798
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-799
Boston - NEXTEL COMMUNICATIONS

Exchange 617-800
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-801
CHARLESTOWN - BROADVIEW NETWORKS, INC. - MA

Exchange 617-802
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-803
- AT&T WIRELESS SERVICES, INC.

Exchange 617-804
QUINCY - MEGACLEC, INC.

Exchange 617-805
-

Exchange 617-806
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-807
-

Exchange 617-808
-

Exchange 617-809
-

Exchange 617-810
-

Exchange 617-811
-

Exchange 617-812
QUINCY - GLOBAL NAPS, INC.-MA

Exchange 617-813
-

Exchange 617-814
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-815
-

Exchange 617-816
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-817
- AT&T WIRELESS SERVICES, INC.

Exchange 617-818
- OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-819
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-820
Cambridge - FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-821
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-822
DORCHESTER - VERIZON NEW ENGLAND INC.

Exchange 617-823
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-824
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-825
DORCHESTER - VERIZON NEW ENGLAND INC.

Exchange 617-826
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-827
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-828
- NEXTEL COMMUNICATIONS

Exchange 617-829
Bedford - RNK, INC.

Exchange 617-830
Boston - DSCI CORPORATION - MA

Exchange 617-831
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-832
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-833
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-834
- AT&T WIRELESS SERVICES, INC.

Exchange 617-835
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-836
Franklin - NORFOLK COUNTY INTERNET, INC.

Exchange 617-837
- FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-838
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-839
LEXINGTON - NEXTEL COMMUNICATIONS

Exchange 617-840
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-841
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-842
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-843
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-844
CAMBRIDGE - CTC COMMUNICATIONS- MA

Exchange 617-845
BOSTON - ALLEGIANCE TELECOM, INC. - MA

Exchange 617-846
WINTHROP - VERIZON NEW ENGLAND INC.

Exchange 617-847
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-848
Cambridge - FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-849
Cambridge - METROCALL

Exchange 617-850
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-851
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-852
- AT&T WIRELESS SERVICES, INC.

Exchange 617-853
Franklin - NORFOLK COUNTY INTERNET, INC.

Exchange 617-854
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-855
BELMONT - VERIZON NEW ENGLAND INC.

Exchange 617-856
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-857
-

Exchange 617-858
Cambridge - GEOTEK COMMUNICATIONS, INC.

Exchange 617-859
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-860
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-861
Bedford - RNK, INC.

Exchange 617-862
Bedford - RNK, INC.

Exchange 617-863
SOMERVILLE - VERIZON NEW ENGLAND INC.

Exchange 617-864
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-865
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-866
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-867
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-868
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-869
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-870
Cambridge - FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-871
Worcester - CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC

Exchange 617-872
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-873
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-874
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-875
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-876
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-877
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-878
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-879
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-880
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-881
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-882
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-883
BELMONT - VERIZON NEW ENGLAND INC.

Exchange 617-884
CHELSEA - VERIZON NEW ENGLAND INC.

Exchange 617-885
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-886
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-887
CHELSEA - VERIZON NEW ENGLAND INC.

Exchange 617-888
Boston - NEXTEL BOOST INVESTMENT, INC.

Exchange 617-889
CHELSEA - VERIZON NEW ENGLAND INC.

Exchange 617-890
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-891
Franklin - NORFOLK COUNTY INTERNET, INC.

Exchange 617-892
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-893
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-894
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-895
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-896
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-897
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-898
MILTON - VERIZON NEW ENGLAND INC.

Exchange 617-899
- AT&T WIRELESS SERVICES, INC.

Exchange 617-900
-

Exchange 617-901
- AT&T WIRELESS SERVICES, INC.

Exchange 617-902
CHARLESTOWN - BROADVIEW NETWORKS, INC. - MA

Exchange 617-903
Worcester - LIGHTSHIP TELECOM, LLC

Exchange 617-904
CHARLESTOWN - BROADVIEW NETWORKS, INC. - MA

Exchange 617-905
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-906
Cambridge - FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-907
Franklin - NORFOLK COUNTY INTERNET, INC.

Exchange 617-908
Boston - NEXTEL COMMUNICATIONS

Exchange 617-909
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-910
- COMCAST PHONE OF MASSACHUSETTS, INC. - MA

Exchange 617-911
-

Exchange 617-912
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-913
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-914
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-915
Cambridge - NET2000 COMMUNICATIONS SERVICES, INC. - MA

Exchange 617-916
NEEDHAM - COMCAST PHONE OF MASSACHUSETTS, INC. - MA

Exchange 617-917
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-918
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-919
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-920
-

Exchange 617-921
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-922
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-923
WATERTOWN - VERIZON NEW ENGLAND INC.

Exchange 617-924
WATERTOWN - VERIZON NEW ENGLAND INC.

Exchange 617-925
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-926
WATERTOWN - VERIZON NEW ENGLAND INC.

Exchange 617-927
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-928
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-929
DORCHESTER - VERIZON NEW ENGLAND INC.

Exchange 617-930
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-931
Cambridge - VERIZON NEW ENGLAND INC.

Exchange 617-932
Cambridge - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-933
BOSTON - PAETEC COMMUNICATIONS, INC.

Exchange 617-934
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-935
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-936
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-937
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-938
Cambridge - FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-939
WALTHAM - SBC TELECOM, INC. - MA

Exchange 617-940
-

Exchange 617-941
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-942
BOSTON - TELEPORT COMMUNICATIONS GROUP - BOSTON

Exchange 617-943
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-944
WALTHAM - SBC TELECOM, INC. - MA

Exchange 617-945
NEEDHAM - COMCAST PHONE OF MASSACHUSETTS, INC. - MA

Exchange 617-946
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-947
WEST ROXBURY - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA

Exchange 617-948
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-949
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-950
-

Exchange 617-951
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-952
WALTHAM - SBC TELECOM, INC. - MA

Exchange 617-953
- OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-954
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-955
- SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-956
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-957
WALTHAM - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-958
BOSTON - GLOBAL CROSSING LOCAL SERVICES, INC.-MA

Exchange 617-959
- OMNIPOINT COMMUNICATIONS MB OPERATIONS, LLC

Exchange 617-960
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-961
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-962
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-964
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-965
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-966
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-967
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-968
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-969
NEWTON - VERIZON NEW ENGLAND INC.

Exchange 617-970
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-971
ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-972
WATERTOWN - VERIZON NEW ENGLAND INC.

Exchange 617-973
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-974
Cambridge - SPRINGWICH CELLULAR LIMITED PARTNERSHIP - MA

Exchange 617-975
BROOKLINE - VERIZON NEW ENGLAND INC.

Exchange 617-976
-

Exchange 617-977
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-978
CAMBRIDGE -

Exchange 617-979
BOSTON - PAETEC COMMUNICATIONS, INC.

Exchange 617-980
WOBURN - SPRINT SPECTRUM L.P.

Exchange 617-981
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-982
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-983
ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-984
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-985
QUINCY - VERIZON NEW ENGLAND INC.

Exchange 617-986
CHARLESTOWN - BROADVIEW NETWORKS, INC. - MA

Exchange 617-987
SOUTH BOSTON - RCN TELECOM SERVICES, INC. - MA

Exchange 617-988
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-989
ROXBURY - VERIZON NEW ENGLAND INC.

Exchange 617-990
Cambridge - FOCAL COMMUNICATIONS CORP OF MASSACHUSETTS

Exchange 617-991
BOSTON - MCIMETRO, ATS, INC.

Exchange 617-992
CAMBRIDGE - MCI WORLDCOM COMMUNICATIONS, INC. - MA

Exchange 617-993
BELMONT - VERIZON NEW ENGLAND INC.

Exchange 617-994
BOSTON - VERIZON NEW ENGLAND INC.

Exchange 617-995
Cambridge - XO MASSACHUSETTS, INC.

Exchange 617-996
Cambridge - NET2000 COMMUNICATIONS SERVICES, INC. - MA

Exchange 617-997
CAMBRIDGE - LEVEL 3 COMMUNICATIONS, LLC - MA

Exchange 617-998
CAMBRIDGE - VERIZON NEW ENGLAND INC.

Exchange 617-999
Cambridge - AT&T LOCAL