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Area Codes > 231 > Central Office Codes

Exchange Rate Center State Operating Company
231-347 PETOSKEY MI AMERITECH MICHIGAN
231-348 PETOSKEY MI AMERITECH MICHIGAN
231-349 BIG RAPIDS MI ALLTEL COMMUNICATIONS, INC. - MI
231-350 BELLAIRE MI ALLTEL COMMUNICATIONS, INC. - MI
231-351 SCOTTVILLE MI TELNET WORLDWIDE, INC.
231-352 FRANKFORT MI AMERITECH MICHIGAN
231-353 MCBAIN MI TELNET WORLDWIDE, INC.
231-354 CORAL MI AMERITECH MICHIGAN
231-355 FREMONT MI TELNET WORLDWIDE, INC.
231-356 MANCELONA MI TELNET WORLDWIDE, INC.
231-357 TRAVERSECY MI ALLTEL COMMUNICATIONS, INC. - MI
231-358 CENTRAL LK MI TELNET WORLDWIDE, INC.
231-360 TRAVERSECY MI DOBSON CELLULAR SYSTEMS, INC.
231-361 MORLEY MI TELNET WORLDWIDE, INC.
231-362 KALEVA MI KALEVA TELEPHONE CO.
231-363 CHEBOYGAN MI TELNET WORLDWIDE, INC.
231-365 WOLVERINE MI TELNET WORLDWIDE, INC.
231-366 FRUITPORT MI LEVEL 3 COMMUNICATIONS, LLC - MI
231-368 BALDWIN MI TELNET WORLDWIDE, INC.
231-369 SOBOARDMAN MI ACE TELEPHONE CO. OF MICHIGAN, INC.
231-372 EVART MI TELNET WORLDWIDE, INC.
231-373 PETOSKEY MI CENTURYTEL WIRELESS, INC.-MI
231-377 CLAM RIVER MI VERIZON NORTH INC.-MI
231-378 COPESHTNVL MI ACE TELEPHONE CO. OF MICHIGAN, INC.
231-382 CADILLAC MI AMERICAN MESSAGING (AM), INC.
231-383 BEULAH MI ALLTEL COMMUNICATIONS, INC. - MI
231-384 KALKASKA MI ALLTEL COMMUNICATIONS, INC. - MI
231-386 NORTHPORT MI AMERITECH MICHIGAN
231-388 LE ROY MI ALLTEL COMMUNICATIONS, INC. - MI
231-389 HARRIETTA MI AMERITECH MICHIGAN
231-392 TRAVERSECY MI SPRINT SPECTRUM L.P.- MI
231-394 MOORESTOWN MI ALLTEL COMMUNICATIONS, INC. - MI
231-395 GRANT MI TELNET WORLDWIDE, INC.
231-398 MANISTEE MI AMERITECH MICHIGAN
231-399 FRANKFORT MI ACD TELECOM, INC. - MI
231-404 STANWOOD MI CENTENNIAL MICHIANA LICENSE COMPANY LLC
231-408 BIG RAPIDS MI CENTENNIAL MICHIANA LICENSE COMPANY LLC
231-409 TRAVERSECY MI DOBSON CELLULAR SYSTEMS, INC.
231-411 MI
231-414 NEWAYGO MI DOBSON CELLULAR SYSTEMS, INC.
231-416 BIG RAPIDS MI AMERICAN MESSAGING (AM), INC.
231-420 CHEBOYGAN MI ALLTEL COMMUNICATIONS, INC. - MI
231-421 TRAVERSECY MI KMC TELECOM V, INC. - MI
231-423 EVART MI LUCRE, INC.
231-424 CARR MI ACD TELECOM, INC. - MI
231-425 LUDINGTON MI NEXTEL COMMUNICATIONS, INC.
231-429 CADILLAC MI CENTURYTEL WIRELESS, INC.-MI
231-432 NORTHPORT MI DOBSON CELLULAR SYSTEMS, INC.
231-435 CADILLAC MI LUCRE, INC.
231-436 MACKINAWCY MI AMERITECH MICHIGAN
231-437 CHARLEVOIX MI NEXTEL COMMUNICATIONS, INC.
231-438 MANISTEE MI LUCRE, INC.
231-439 PETOSKEY MI AMERITECH MICHIGAN
231-440 BALDWIN MI LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI
231-441 FIFE LAKE MI LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI
231-445 CHEBOYGAN MI ALLTEL COMMUNICATIONS, INC. - MI
231-448 ST JAMES MI ISLAND TELEPHONE CO.
231-450 HESPERIA MI DOBSON CELLULAR SYSTEMS, INC.
231-452 NEWAYGO MI LUCRE, INC.
231-457 MUSKEGON MI ACD TELECOM, INC. - MI
231-459 BOYNE CITY MI LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI
231-460 BIG RAPIDS MI LUCRE, INC.
231-462 FOUNTAIN MI AMERITECH MICHIGAN
231-463 TRAVERSECY MI ALLTEL COMMUNICATIONS, INC. - MI
231-464 FREESOIL MI AMERITECH MICHIGAN
231-465 REED CITY MI CENTENNIAL MICHIANA LICENSE COMPANY LLC
231-468 CADILLAC MI SPRINT SPECTRUM L.P.- MI
231-477 BRETHREN MI KALEVA TELEPHONE CO.
231-480 LUDINGTON MI LEVEL 3 COMMUNICATIONS, LLC - MI
231-482 BOYNE CITY MI LUCRE, INC.
231-486 TRAVERSECY MI BROOKS FIBER COMMUNICATIONS - MICHIGAN
231-487 PETOSKEY MI AMERITECH MICHIGAN
231-488 MANISTEE MI LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI
231-492 TRAVERSECY MI ALLTEL COMMUNICATIONS, INC. - MI
231-494 BIG RAPIDS MI AMERICAN MESSAGING (AM), INC.
231-498 ELK RAPIDS MI LEVEL 3 COMMUNICATIONS, LLC - MI
231-499 TRAVERSECY MI ALLTEL COMMUNICATIONS, INC. - MI
231-508 ONEKAMA MI KALEVA TELEPHONE CO.
231-509 BALDWIN MI ARCH WIRELESS HOLDINGS, INC.
231-510 MANISTEE MI DOBSON CELLULAR SYSTEMS, INC.
231-511 MI
231-512 TRAVERSECY MI AMERICAN MESSAGING (AM), INC.
231-514 CADILLAC MI AMERICAN MESSAGING (AM), INC.
231-515 EVART MI ACD TELECOM, INC. - MI
231-516 PETOSKEY MI AMERICAN MESSAGING (AM), INC.
231-518 KALKASKA MI LEVEL 3 COMMUNICATIONS, LLC - MI
231-519 NEWAYGO MI ALLTEL COMMUNICATIONS, INC. - MI
231-520 CHARLEVOIX MI LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI
231-522 LUTHER MI LUCRE, INC.
231-525 WOLVERINE MI AMERITECH MICHIGAN
231-526 HARBOR SPG MI AMERITECH MICHIGAN
231-527 BIG RAPIDS MI AMERITECH MICHIGAN
231-529 BRUTUS MI CENTURYTEL OF MICHIGAN, INC.
231-532 KALKASKA MI AMERICAN MESSAGING (AM), INC.
231-533 BELLAIRE MI VERIZON NORTH INC.-MI
231-534 TRAVERSECY MI AT&T LOCAL
231-535 WALLOON LK MI AMERITECH MICHIGAN
231-536 EASTJORDAN MI AMERITECH MICHIGAN
231-537 LEVERING MI CENTURYTEL OF MICHIGAN, INC.
231-538 FREMONT MI LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI