Information for Area Code: 231-xxx-xxxx - MI - MICHIGAN

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Information about Area Code 231

Area code 231 was created in June 1999 as a split from area code 616. 231 was basically the northern half of 616 at the time of establishment.

Among the Michigan cities it serves are Big Rapids, Cadillac, Ludington, Muskegon, Petoskey, and Traverse City.

Its southern boundary closely follows the county lines between Muskegon County and Ottawa County and Kent County and Montcalm County.

See also

External links

State of Michigan area codes: 231, 248, 269, 313, 517, 586, 616, 734, 810, 906, 947, 989
North: 906
West: Lake Michigan area code 231 East: 989
South: 616



Exchanges for Area Code 231-xxx-xxxx:

Exchange 231-200
-

Exchange 231-201
Grand Rapids - CENTENNIAL MICHIANA LICENSE COMPANY LLC

Exchange 231-202
Grand Rapids - CENTENNIAL MICHIANA LICENSE COMPANY LLC

Exchange 231-203
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-204
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-205
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-206
Grand Rapids - NEXTEL COMMUNICATIONS

Exchange 231-207
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-208
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-209
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-211
-

Exchange 231-214
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-215
Grand Rapids - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI

Exchange 231-217
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-218
Grand Rapids - NEXTEL COMMUNICATIONS

Exchange 231-219
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-220
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-222
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-223
OLD MISSION - PENINSULA TELEPHONE CO.

Exchange 231-224
Grand Rapids - LUCRE, INC.

Exchange 231-225
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-226
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-227
Grand Rapids - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-228
CEDAR - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-229
Moorestown - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-230
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-231
-

Exchange 231-232
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-233
MUSKEGON - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-235
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-236
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-237
CHARLEVOIX - AMERITECH MICHIGAN

Exchange 231-238
HAWKS - AMERITECH MICHIGAN

Exchange 231-239
MUSKEGON - CENTURYTEL WIRELESS, INC.-MI

Exchange 231-240
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-241
-

Exchange 231-242
HARBOR SPRINGS - AMERITECH MICHIGAN

Exchange 231-243
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-249
Grand Rapids - LUCRE, INC.

Exchange 231-250
Grand Rapids - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-255
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-256
LAKE LEELANAU - AMERITECH MICHIGAN

Exchange 231-258
KALKASKA - AMERITECH MICHIGAN

Exchange 231-259
-

Exchange 231-262
Grand Rapids - ACD TELECOM, INC. - MI

Exchange 231-263
KINGSLEY - CENTURY TELEPHONE CO. OF NORTHERN MICHIGAN

Exchange 231-264
ELK RAPIDS - AMERITECH MICHIGAN

Exchange 231-266
IRONS - AMERITECH MICHIGAN

Exchange 231-267
WILLIAMSBURG - AMERITECH MICHIGAN

Exchange 231-268
Traverse City - CENTURYTEL WIRELESS, INC.-MI

Exchange 231-269
BUCKLEY - ACE TELEPHONE CO. OF MICHIGAN, INC.

Exchange 231-271
SUTTONS BAY - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-274
Grand Rapids - AMERITECH MOBILE SERVICES, INC.

Exchange 231-275
LAKE ANN - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-276
GRAWN - AMERITECH MICHIGAN

Exchange 231-282
Grand Rapids - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI

Exchange 231-286
Grand Rapids - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI

Exchange 231-287
- CENTURYTEL WIRELESS, INC.-MI

Exchange 231-288
Wyoming - AT&T WIRELESS SERVICES, INC.

Exchange 231-290
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-301
Grand Rapids - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI

Exchange 231-302
Grand Rapids - LUCRE, INC.

Exchange 231-303
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-305
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-306
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-307
Grand Rapids - CENTENNIAL MICHIANA LICENSE COMPANY LLC

Exchange 231-308
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-309
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-311
-

Exchange 231-312
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-313
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-314
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-315
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-316
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-317
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-318
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-319
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-320
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-322
Rapid City - VERIZON NORTH INC.-MI

Exchange 231-323
Grand Rapids - LUCRE, INC.

Exchange 231-325
Honor - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-326
EMPIRE - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-327
- CENTURYTEL WIRELESS, INC.-MI

Exchange 231-328
Merritt - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-329
MUSKEGON - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-330
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-331
ALDEN - VERIZON NORTH INC.-MI

Exchange 231-332
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-333
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-334
GLEN ARBOR - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-335
Grand Rapids - CENTENNIAL MICHIANA LICENSE COMPANY LLC

Exchange 231-336
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-337
Grand Rapids - LUCRE, INC.

Exchange 231-338
Grand Rapids - LUCRE, INC.

Exchange 231-339
- AIRTOUCH PAGING - MICHIGAN

Exchange 231-340
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-341
- AIRTOUCH PAGING - MICHIGAN

Exchange 231-342
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-343
Kentwood - SPRINT SPECTRUM L.P.- MI

Exchange 231-344
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-345
Grand Rapids - LUCRE, INC.

Exchange 231-346
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-347
PETOSKEY - AMERITECH MICHIGAN

Exchange 231-348
PETOSKEY - AMERITECH MICHIGAN

Exchange 231-349
Grand Rapids - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-350
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-351
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-352
FRANKFORT - AMERITECH MICHIGAN

Exchange 231-353
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-354
TRUFANT - AMERITECH MICHIGAN

Exchange 231-355
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-356
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-357
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-358
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-360
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-361
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-362
KALEVA - KALEVA TELEPHONE CO.

Exchange 231-363
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-365
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-366
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-368
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-369
SOUTH BOARDMAN - ACE TELEPHONE CO. OF MICHIGAN, INC.

Exchange 231-372
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-373
Traverse City - CENTURYTEL WIRELESS, INC.-MI

Exchange 231-377
CLAM RIVER - VERIZON NORTH INC.-MI

Exchange 231-378
COPEMISH - ACE TELEPHONE CO. OF MICHIGAN, INC.

Exchange 231-382
- AIRTOUCH PAGING - MICHIGAN

Exchange 231-383
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-384
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-386
NORTHPORT - AMERITECH MICHIGAN

Exchange 231-388
Grand Rapids - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-389
HARRIETTA - AMERITECH MICHIGAN

Exchange 231-392
Kentwood - SPRINT SPECTRUM L.P.- MI

Exchange 231-394
Grand Rapids - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-395
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-398
MANISTEE - AMERITECH MICHIGAN

Exchange 231-399
Grand Rapids - ACD TELECOM, INC. - MI

Exchange 231-404
Muskegon - CENTENNIAL MICHIANA LICENSE COMPANY LLC

Exchange 231-408
Grand Rapids - CENTENNIAL MICHIANA LICENSE COMPANY LLC

Exchange 231-409
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-411
-

Exchange 231-414
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-416
Grand Rapids - AMERITECH MOBILE SERVICES, INC.

Exchange 231-420
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-421
Benton Harbor - KMC TELECOM V, INC. - MI

Exchange 231-423
Grand Rapids - LUCRE, INC.

Exchange 231-424
Grand Rapids - ACD TELECOM, INC. - MI

Exchange 231-425
Grand Rapids - NEXTEL COMMUNICATIONS

Exchange 231-428
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-429
Traverse City - CENTURYTEL WIRELESS, INC.-MI

Exchange 231-432
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-435
Grand Rapids - LUCRE, INC.

Exchange 231-436
MACKINAW CITY - AMERITECH MICHIGAN

Exchange 231-437
Grand Rapids - NEXTEL COMMUNICATIONS

Exchange 231-438
Grand Rapids - LUCRE, INC.

Exchange 231-439
PETOSKEY - AMERITECH MICHIGAN

Exchange 231-440
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-441
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-445
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-448
ST JAMES - ISLAND TELEPHONE CO.

Exchange 231-450
Traverse City - ACD TELECOM, INC. - MI

Exchange 231-452
Grand Rapids - LUCRE, INC.

Exchange 231-457
Grand Rapids - ACD TELECOM, INC. - MI

Exchange 231-459
Grand Rapids - LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI

Exchange 231-460
Grand Rapids - LUCRE, INC.

Exchange 231-462
FOUNTAIN - AMERITECH MICHIGAN

Exchange 231-463
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-464
FOUNTAIN - AMERITECH MICHIGAN

Exchange 231-465
Grand Rapids - CENTENNIAL MICHIANA LICENSE COMPANY LLC

Exchange 231-468
Kentwood - SPRINT SPECTRUM L.P.- MI

Exchange 231-477
Brethren - KALEVA TELEPHONE CO.

Exchange 231-480
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-482
Grand Rapids - LUCRE, INC.

Exchange 231-486
Traverse City - BROOKS FIBER COMMUNICATIONS - MICHIGAN

Exchange 231-487
PETOSKEY - AMERITECH MICHIGAN

Exchange 231-488
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-492
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-494
- AIRTOUCH PAGING - MICHIGAN

Exchange 231-498
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-499
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-503
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-509
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-510
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-511
-

Exchange 231-512
- AIRTOUCH PAGING - MICHIGAN

Exchange 231-514
Grand Rapids - AMERITECH MOBILE SERVICES, INC.

Exchange 231-515
Grand Rapids - ACD TELECOM, INC. - MI

Exchange 231-516
Grand Rapids - AMERITECH MOBILE SERVICES, INC.

Exchange 231-518
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-519
Grand Rapids - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-520
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-522
Grand Rapids - LUCRE, INC.

Exchange 231-525
WOLVERINE - AMERITECH MICHIGAN

Exchange 231-526
HARBOR SPRINGS - AMERITECH MICHIGAN

Exchange 231-527
BIG RAPIDS - AMERITECH MICHIGAN

Exchange 231-529
BRUTUS - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-532
- AIRTOUCH PAGING - MICHIGAN

Exchange 231-533
Bellaire - VERIZON NORTH INC.-MI

Exchange 231-534
Grand Rapids - AT&T LOCAL

Exchange 231-535
WALLOON LAKE - AMERITECH MICHIGAN

Exchange 231-536
EAST JORDAN - AMERITECH MICHIGAN

Exchange 231-537
LEVERING - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-538
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-539
PELLSTON - AMERITECH MICHIGAN

Exchange 231-543
Grand Rapids - LUCRE, INC.

Exchange 231-544
CENTRAL LAKE - VERIZON NORTH INC.-MI

Exchange 231-546
ELMIRA - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-547
CHARLEVOIX - AMERITECH MICHIGAN

Exchange 231-548
ALANSON - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-549
Boyne Falls - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-555
Grand Rapids - AMERITECH MICHIGAN

Exchange 231-556
Grand Rapids - LUCRE, INC.

Exchange 231-557
Grand Rapids - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI

Exchange 231-563
Grand Rapids - LUCRE, INC.

Exchange 231-564
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-568
Grand Rapids - LUCRE, INC.

Exchange 231-569
- AIRTOUCH PAGING - MICHIGAN

Exchange 231-570
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-571
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-577
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-578
Grand Rapids - NEXTEL COMMUNICATIONS

Exchange 231-580
Kentwood - SPRINT SPECTRUM L.P.- MI

Exchange 231-582
BOYNE CITY - AMERITECH MICHIGAN

Exchange 231-583
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-584
ALBA - PIGEON TELEPHONE CO.

Exchange 231-585
LAKE OF THE NORTH - PIGEON TELEPHONE CO.

Exchange 231-586
Grand Rapids - CAT COMMUNICATIONS INTERNATIONAL, INC. - MI

Exchange 231-587
MANCELONA - AMERITECH MICHIGAN

Exchange 231-588
ELLSWORTH - VERIZON NORTH INC.-MI

Exchange 231-590
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-591
BIG RAPIDS - AMERITECH MICHIGAN

Exchange 231-592
BIG RAPIDS - AMERITECH MICHIGAN

Exchange 231-593
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-594
Grand Rapids - LUCRE, INC.

Exchange 231-596
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-597
CHEBOYGAN - AMERITECH MICHIGAN

Exchange 231-598
Grand Rapids - CENTENNIAL MICHIANA LICENSE COMPANY LLC

Exchange 231-599
EASTPORT - VERIZON NORTH INC.-MI

Exchange 231-604
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-605
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-606
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-607
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-608
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-610
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-611
-

Exchange 231-613
- DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-614
Grand Rapids - LUCRE, INC.

Exchange 231-615
Grand Rapids - AMERITECH MOBILE SERVICES, INC.

Exchange 231-620
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-622
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-623
Grand Rapids - LUCRE, INC.

Exchange 231-624
Grand Rapids - NEXTEL COMMUNICATIONS

Exchange 231-625
ODEN - AMERITECH MICHIGAN

Exchange 231-627
CHEBOYGAN - AMERITECH MICHIGAN

Exchange 231-628
- AIRTOUCH PAGING - MICHIGAN

Exchange 231-629
Grand Rapids - NEXTEL COMMUNICATIONS

Exchange 231-631
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-632
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-633
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-634
POINT AUX PINS - ISLAND TELEPHONE CO.

Exchange 231-635
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-636
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-637
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-638
Grand Rapids - NEXTEL COMMUNICATIONS

Exchange 231-639
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-640
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-642
Grand Rapids - NEXTEL COMMUNICATIONS

Exchange 231-643
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-644
Grand Rapids - LUCRE, INC.

Exchange 231-645
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-646
ELLSWORTH - VERIZON NORTH INC.-MI

Exchange 231-647
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-648
Grand Rapids - LUCRE, INC.

Exchange 231-649
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-651
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-652
NEWAYGO - AMERITECH MICHIGAN

Exchange 231-656
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-660
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-662
Grand Rapids - LUCRE, INC.

Exchange 231-667
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-668
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-670
Grand Rapids - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI

Exchange 231-672
Grand Rapids - AT&T LOCAL

Exchange 231-674
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-675
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-676
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-677
- CARR TELEPHONE COMPANY - MI

Exchange 231-678
Grand Rapids - ACD TELECOM, INC. - MI

Exchange 231-679
Grand Rapids - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-680
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-681
FRUITPORT - VERIZON NORTH INC.-MI

Exchange 231-682
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-683
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-686
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-689
WHITE CLOUD - AMERITECH MICHIGAN

Exchange 231-690
MUSKEGON - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-693
Grand Rapids - LUCRE, INC.

Exchange 231-694
Grand Rapids - LUCRE, INC.

Exchange 231-695
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-697
Grand Rapids - LUCRE, INC.

Exchange 231-698
Grand Rapids - LUCRE, INC.

Exchange 231-700
-

Exchange 231-704
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-709
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-711
-

Exchange 231-712
Grand Rapids - AMERITECH MOBILE SERVICES, INC.

Exchange 231-714
Traverse City - CENTURYTEL WIRELESS, INC.-MI

Exchange 231-715
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-719
MUSKEGON - VERIZON NORTH INC.-MI

Exchange 231-720
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-721
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-722
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-723
MANISTEE - AMERITECH MICHIGAN

Exchange 231-724
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-725
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-726
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-727
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-728
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-729
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-730
MUSKEGON - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-731
Grand Rapids - LUCRE, INC.

Exchange 231-732
Grand Rapids - LUCRE, INC.

Exchange 231-733
Muskegon Heights - VERIZON NORTH INC.-MI

Exchange 231-734
EVART - AMERITECH MICHIGAN

Exchange 231-735
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-736
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-737
Muskegon Heights - VERIZON NORTH INC.-MI

Exchange 231-739
Muskegon Heights - VERIZON NORTH INC.-MI

Exchange 231-740
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI

Exchange 231-741
Grand Rapids - LUCRE, INC.

Exchange 231-742
MUSKEGON - CELLULAR MOBILE SYS OF MI RSA NO. 7 LIMITED PRTNR

Exchange 231-743
MARION - AMERITECH MICHIGAN

Exchange 231-744
MUSKEGON - VERIZON NORTH INC.-MI

Exchange 231-745
BALDWIN - AMERITECH MICHIGAN

Exchange 231-747
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-750
Muskegon - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-753
Grand Rapids - LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI

Exchange 231-754
Grand Rapids - LUCRE, INC.

Exchange 231-755
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-757
SCOTTVILLE - AMERITECH MICHIGAN

Exchange 231-758
Grand Rapids - NEXTEL COMMUNICATIONS

Exchange 231-759
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-760
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-762
AMBLE - UPPER PENINSULA TELEPHONE CO.

Exchange 231-764
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-766
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-767
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-768
LE ROY - AMERITECH MICHIGAN

Exchange 231-769
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-773
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-774
Grand Rapids - ACD TELECOM, INC. - MI

Exchange 231-775
CADILLAC - AMERITECH MICHIGAN

Exchange 231-776
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-777
Muskegon - VERIZON NORTH INC.-MI

Exchange 231-778
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-779
CADILLAC - AMERITECH MICHIGAN

Exchange 231-780
Norton Shores - VERIZON NORTH INC.-MI

Exchange 231-782
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-785
Grand Rapids - LUCRE, INC.

Exchange 231-788
WOLF LAKE (MUSKEGON) - VERIZON NORTH INC.-MI

Exchange 231-789
Grand Rapids - LUCRE, INC.

Exchange 231-790
Grand Rapids - LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI

Exchange 231-791
Grand Rapids - KMC TELECOM V, INC. - MI

Exchange 231-792
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-793
Grand Rapids - LUCRE, INC.

Exchange 231-794
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-796
BIG RAPIDS - AMERITECH MICHIGAN

Exchange 231-797
LUTHER - AMERITECH MICHIGAN

Exchange 231-798
MUSKEGON - VERIZON NORTH INC.-MI

Exchange 231-799
MUSKEGON - VERIZON NORTH INC.-MI

Exchange 231-803
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-805
Grand Rapids - ACD TELECOM, INC. - MI

Exchange 231-806
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-808
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-811
-

Exchange 231-813
Grand Rapids - LUCRE, INC.

Exchange 231-818
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-821
HOLTON - VERIZON NORTH INC.-MI

Exchange 231-822
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-823
STANWOOD - VERIZON NORTH INC.-MI

Exchange 231-824
MANTON - AMERITECH MICHIGAN

Exchange 231-825
MC BAIN - AMERITECH MICHIGAN

Exchange 231-826
Falmouth - CENTURY TELEPHONE CO. OF NORTHERN MICHIGAN

Exchange 231-827
Grand Rapids - LUCRE, INC.

Exchange 231-828
TWIN LAKE - VERIZON NORTH INC.-MI

Exchange 231-829
TUSTIN - AMERITECH MICHIGAN

Exchange 231-830
Muskegon Heights - VERIZON NORTH INC.-MI

Exchange 231-832
REED CITY - AMERITECH MICHIGAN

Exchange 231-833
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-834
GRANT - AMERITECH MICHIGAN

Exchange 231-835
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-836
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-837
- AIRTOUCH PAGING - MICHIGAN

Exchange 231-838
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-839
LAKE CITY - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-842
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-843
Ludington - VERIZON NORTH INC.-MI

Exchange 231-844
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-845
Ludington - VERIZON NORTH INC.-MI

Exchange 231-846
Grand Rapids - NEXTEL COMMUNICATIONS

Exchange 231-848
Wellston - KALEVA TELEPHONE CO.

Exchange 231-852
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-853
Ravenna - VERIZON NORTH INC.-MI

Exchange 231-854
HESPERIA - VERIZON NORTH INC.-MI

Exchange 231-855
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-856
MORLEY - AMERITECH MICHIGAN

Exchange 231-859
Wellston - KALEVA TELEPHONE CO.

Exchange 231-861
Shelby - VERIZON NORTH INC.-MI

Exchange 231-862
HOXEYVILLE - ACE TELEPHONE CO. OF MICHIGAN, INC.

Exchange 231-863
Grand Rapids - LUCRE, INC.

Exchange 231-864
Bear Lake - CENTURY TELEPHONE OF MICHIGAN, INC.

Exchange 231-865
FRUITPORT - VERIZON NORTH INC.-MI

Exchange 231-866
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-867
CHIPPEWA LAKE - CENTURY TELEPHONE - MIDWEST, INC.

Exchange 231-869
Pentwater - VERIZON NORTH INC.-MI

Exchange 231-871
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-872
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-873
Hart - VERIZON NORTH INC.-MI

Exchange 231-874
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-875
Grand Rapids - LUCRE, INC.

Exchange 231-876
CADILLAC - AMERITECH MICHIGAN

Exchange 231-877
Grand Rapids - LUCRE, INC.

Exchange 231-878
Traverse City - ALLTEL COMMUNICATIONS, INC. - WI

Exchange 231-879
FIFE LAKE - AMERITECH MICHIGAN

Exchange 231-881
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-882
BEULAH - AMERITECH MICHIGAN

Exchange 231-883
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-884
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-885
Mesick - ACE TELEPHONE CO. OF MICHIGAN, INC.

Exchange 231-886
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-887
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-889
ONEKAMA - AMERITECH MICHIGAN

Exchange 231-890
TRAVERSE CITY - AMERITECH MICHIGAN

Exchange 231-893
Whitehall - VERIZON NORTH INC.-MI

Exchange 231-894
Whitehall - VERIZON NORTH INC.-MI

Exchange 231-896
Grand Rapids - LUCRE, INC.

Exchange 231-898
CARR - CARR TELEPHONE CO.

Exchange 231-899
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-902
Grand Rapids - TELNET WORLDWIDE, INC.

Exchange 231-903
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-907
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-908
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-911
-

Exchange 231-912
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-916
Grand Rapids - LEVEL 3 COMMUNICATIONS, LLC - MI

Exchange 231-920
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-922
TRAVERSE CITY - AMERITECH MICHIGAN

Exchange 231-923
Grand Rapids - KMC TELECOM V, INC. - MI

Exchange 231-924
FREMONT - AMERITECH MICHIGAN

Exchange 231-925
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-926
Grand Rapids - LUCRE, INC.

Exchange 231-928
FREMONT - AMERITECH MICHIGAN

Exchange 231-929
TRAVERSE CITY - AMERITECH MICHIGAN

Exchange 231-930
Traverse City - ACD TELECOM, INC. - MI

Exchange 231-931
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-932
TRAVERSE CITY - AMERITECH MICHIGAN

Exchange 231-933
TRAVERSE CITY - AMERITECH MICHIGAN

Exchange 231-935
TRAVERSE CITY - AMERITECH MICHIGAN

Exchange 231-936
Grand Rapids - LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI

Exchange 231-937
HOWARD CITY - VERIZON NORTH INC.-MI

Exchange 231-938
ACME - AMERITECH MICHIGAN

Exchange 231-941
TRAVERSE CITY - AMERITECH MICHIGAN

Exchange 231-942
COSHOCTON - AMERITECH MICHIGAN

Exchange 231-943
GRAWN - AMERITECH MICHIGAN

Exchange 231-944
Traverse City - UNITED TELECOM, INC. - MI

Exchange 231-946
TRAVERSE CITY - AMERITECH MICHIGAN

Exchange 231-947
TRAVERSE CITY - AMERITECH MICHIGAN

Exchange 231-950
-

Exchange 231-952
Grand Rapids - ARCH WIRELESS HOLDINGS, INC.

Exchange 231-955
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-958
-

Exchange 231-959
-

Exchange 231-962
Grand Rapids - LUCRE, INC.

Exchange 231-970
Traverse City - DOBSON CELLULAR SYSTEMS, INC.

Exchange 231-972
MECOSTA - CENTURY TELEPHONE - MIDWEST, INC.

Exchange 231-974
Grand Rapids - LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI

Exchange 231-976
-

Exchange 231-981
Whitehall - VERIZON NORTH INC.-MI

Exchange 231-994
Grand Rapids - ACD TELECOM, INC. - MI

Exchange 231-995
TRAVERSE CITY - AMERITECH MICHIGAN