Central Office Codes
Exchange | Rate Center | State | Operating Company |
---|---|---|---|
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 |
231-539 | PELLSTON | MI | AMERITECH MICHIGAN |
231-543 | LE ROY | MI | LUCRE, INC. |
231-544 | CENTRAL LK | MI | VERIZON NORTH INC.-MI |
231-546 | ELMIRA | MI | CENTURYTEL OF MICHIGAN, INC. |
231-547 | CHARLEVOIX | MI | AMERITECH MICHIGAN |
231-548 | ALANSON | MI | CENTURYTEL OF MICHIGAN, INC. |
231-549 | BOYNEFALLS | MI | CENTURYTEL OF MICHIGAN, INC. |
231-555 | GDRPBL1JB | MI | AMERITECH MICHIGAN |
231-556 | CHARLEVOIX | MI | LUCRE, INC. |
231-557 | MUSKEGON | MI | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
231-563 | MUSKEGON | MI | LUCRE, INC. |
231-564 | KALKASKA | MI | DOBSON CELLULAR SYSTEMS, INC. |
231-568 | TRAVERSECY | MI | LUCRE, INC. |
231-569 | PETOSKEY | MI | AMERICAN MESSAGING (AM), INC. |
231-570 | FIFE LAKE | MI | DOBSON CELLULAR SYSTEMS, INC. |
231-571 | MUSKEGON | MI | VERIZON NORTH INC.-MI |
231-577 | CADILLAC | MI | LEVEL 3 COMMUNICATIONS, LLC - MI |
231-578 | MUSKEGON | MI | NEXTEL COMMUNICATIONS, INC. |
231-580 | BIG RAPIDS | MI | SPRINT SPECTRUM L.P.- MI |
231-582 | BOYNE CITY | MI | AMERITECH MICHIGAN |
231-583 | LUDINGTON | MI | LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI |
231-584 | ALBA | MI | PIGEON TELEPHONE CO. |
231-585 | LAKE NORTH | MI | PIGEON TELEPHONE CO. |
231-587 | MANCELONA | MI | AMERITECH MICHIGAN |
231-588 | ELLSWORTH | MI | VERIZON NORTH INC.-MI |
231-590 | TRAVERSECY | MI | ALLTEL COMMUNICATIONS, INC. - MI |
231-591 | BIG RAPIDS | MI | AMERITECH MICHIGAN |
231-592 | BIG RAPIDS | MI | AMERITECH MICHIGAN |
231-593 | CADILLAC | MI | ARCH WIRELESS HOLDINGS, INC. |
231-594 | HART | MI | LUCRE, INC. |
231-596 | HARBOR SPG | MI | ARCH WIRELESS HOLDINGS, INC. |
231-597 | CHEBOYGAN | MI | AMERITECH MICHIGAN |
231-598 | BIG RAPIDS | MI | CENTENNIAL MICHIANA LICENSE COMPANY LLC |
231-599 | EASTPORT | MI | VERIZON NORTH INC.-MI |
231-604 | KALKASKA | MI | ARCH WIRELESS HOLDINGS, INC. |
231-605 | NEWAYGO | MI | ARCH WIRELESS HOLDINGS, INC. |
231-606 | BIG RAPIDS | MI | ARCH WIRELESS HOLDINGS, INC. |
231-607 | CHEBOYGAN | MI | ARCH WIRELESS HOLDINGS, INC. |
231-608 | FRANKFORT | MI | ARCH WIRELESS HOLDINGS, INC. |
231-611 | MI | ||
231-613 | SCOTTVILLE | MI | CARR TELEPHONE CO. |
231-614 | PENTWATER | MI | LUCRE, INC. |
231-615 | CHEBOYGAN | MI | AMERICAN MESSAGING (AM), INC. |
231-620 | TRAVERSECY | MI | DOBSON CELLULAR SYSTEMS, INC. |
231-622 | PETOSKEY | MI | LEVEL 3 COMMUNICATIONS, LLC - MI |
231-623 | WOLVERINE | MI | LUCRE, INC. |
231-624 | KALKASKA | MI | NEXTEL COMMUNICATIONS, INC. |
231-625 | CHEBOYGAN | MI | AMERITECH MICHIGAN |
231-627 | CHEBOYGAN | MI | AMERITECH MICHIGAN |
231-628 | MANISTEE | MI | AMERICAN MESSAGING (AM), INC. |
231-629 | BIG RAPIDS | MI | NEXTEL COMMUNICATIONS, INC. |
231-631 | TRAVERSECY | MI | ALLTEL COMMUNICATIONS, INC. - MI |
231-632 | TRAVERSECY | MI | DOBSON CELLULAR SYSTEMS, INC. |
231-633 | TRAVERSECY | MI | DOBSON CELLULAR SYSTEMS, INC. |
231-634 | BOIS BLANC | MI | ISLAND TELEPHONE CO. |
231-635 | MACKINAWCY | MI | LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI |