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Area Codes > 406 > Central Office Codes

Exchange Rate Center State Operating Company
406-427 SO BROADUS MT RANGE TELEPHONE COOPERATIVE, INC.
406-428 GRASSRANGE MT MID-RIVERS TELEPHONE COOPERATIVE, INC.
406-429 WINNETT MT MID-RIVERS TELEPHONE COOPERATIVE, INC.
406-430 HELENA MT 360NETWORKS (USA) INC. - MT
406-431 HELENA MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-432 DEVON MT NORTHERN TELEPHONE COOPERATIVE, INC.
406-433 SIDNEY MT MID-RIVERS TELEPHONE COOPERATIVE, INC.
406-434 SHELBY MT QWEST CORPORATION
406-435 BILLINGS MT ONE EIGHTY COMMUNICATIONS, INC. - MT
406-436 BROADUS MT RANGE TELEPHONE COOPERATIVE, INC.
406-437 HELENA MT MCIMETRO, ATS, INC.
406-438 HELENA MT WESTERN WIRELESS CORPORATION-MT
406-439 HELENA MT WESTERN WIRELESS CORPORATION-MT
406-440 HELENA MT 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT
406-441 HELENA MT QWEST CORPORATION
406-442 HELENA MT QWEST CORPORATION
406-443 HELENA MT QWEST CORPORATION
406-444 HELENA MT QWEST CORPORATION
406-445 RED LODGE MT QWEST CORPORATION
406-446 RED LODGE MT QWEST CORPORATION
406-447 HELENA MT QWEST CORPORATION
406-448 NO POPLAR MT NEMONT TELEPHONE COOPERATIVE, INC.
406-449 HELENA MT QWEST CORPORATION
406-450 SHELBY MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-451 BOZEMAN MT SPRINT SPECTRUM L.P.- MT
406-452 GREATFALLS MT QWEST CORPORATION
406-453 GREATFALLS MT QWEST CORPORATION
406-454 GREATFALLS MT QWEST CORPORATION
406-455 GREATFALLS MT QWEST CORPORATION
406-456 SO CHESTER MT TRIANGLE TELEPHONE COOPERATIVE ASSN., INC.
406-457 HELENA MT QWEST CORPORATION
406-458 HELENA MT QWEST CORPORATION
406-459 HELENA MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-460 SHELBY MT WESTERN WIRELESS CORPORATION-MT
406-461 HELENA MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-462 WINIFRED MT TRIANGLE TELEPHONE COOPERATIVE ASSN., INC.
406-463 POWER MT 3 RIVERS TELEPHONE COOPERATIVE, INC.
406-464 ROY MT MID-RIVERS TELEPHONE COOPERATIVE, INC.
406-465 HELENA MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-466 CHOTEAU MT 3 RIVERS TELEPHONE COOPERATIVE, INC.
406-467 FAIRFIELD MT 3 RIVERS TELEPHONE COOPERATIVE, INC.
406-468 CASCADE MT QWEST CORPORATION
406-469 PENDROY MT 3 RIVERS TELEPHONE COOPERATIVE, INC.
406-470 SHELBY MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-471 KALISPELL MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-472 DUPUYER MT 3 RIVERS TELEPHONE COOPERATIVE, INC.
406-473 JUDITH GAP MT CENTRAL MONTANA COMMUNICATIONS, INC.
406-474 FLAXVILLE MT NEMONT TELEPHONE COOPERATIVE, INC.
406-475 HELENA MT QWEST CORPORATION
406-476 DUTTON MT QWEST CORPORATION
406-477 LAME DEER MT RANGE TELEPHONE COOPERATIVE, INC.
406-478 SIDNEY MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-479 BUTTE MT WESTERN WIRELESS CORPORATION-MT
406-480 SIDNEY MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-481 MT QWEST CORPORATION
406-482 SIDNEY MT QWEST CORPORATION
406-483 DAGMAR MT NEMONT TELEPHONE COOPERATIVE, INC.
406-484 CROOKEDCRK MT TCT WEST, INC.
406-485 CIRCLE MT MID-RIVERS TELEPHONE COOPERATIVE, INC.
406-486 FALLON MT MID-RIVERS TELEPHONE COOPERATIVE, INC.
406-487 SCOBEY MT NEMONT TELEPHONE COOPERATIVE, INC.
406-488 SIDNEY MT MID-RIVERS TELEPHONE COOPERATIVE, INC.
406-489 SIDNEY MT WESTERN WIRELESS CORPORATION-MT
406-490 BUTTE MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-491 BUTTE MT WESTERN WIRELESS CORPORATION-MT
406-492 AVON MT BLACKFOOT TELEPHONE COOPERATIVE, INC.
406-493 MISSOULA MT IDT AMERICA CORP. - MT
406-494 BUTTE MT QWEST CORPORATION
406-495 HELENA MT QWEST CORPORATION
406-496 BUTTE MT QWEST CORPORATION
406-497 BUTTE MT QWEST CORPORATION
406-498 BUTTE MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-499 SEELEYLAKE MT WESTERN WIRELESS CORPORATION-MT
406-511 MT
406-513 HELENA MT BRESNAN BROADBAND OF MONTANA, LLC - MT
406-515 BOZEMAN MT CONTACT COMMUNICATIONS, WY
406-520 ABSAROKEE MT MTPCS, LLC
406-521 TOWNSEND MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-522 BOZEMAN MT QWEST CORPORATION
406-523 MISSOULA MT QWEST CORPORATION
406-524 VLINSTRLPK MT NEMONT TELEPHONE COOPERATIVE, INC.
406-525 SO WOLF PT MT MID-RIVERS TELEPHONE COOPERATIVE, INC.
406-526 FORT PECK MT NEMONT TELEPHONE COOPERATIVE, INC.
406-527 SACO MT NEMONT TELEPHONE COOPERATIVE, INC.
406-528 RONAN MT RONAN TELEPHONE CO.
406-529 MISSOULA MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-530 LAUREL MT COMMPARTNERS, LLC - MT
406-531 MISSOULA MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-532 MISSOULA MT BLACKFOOT COMMUNICATIONS, INC. - MT
406-533 BUTTE MT QWEST CORPORATION
406-534 BILLINGS MT IDT AMERICA CORP. - MT
406-535 LEWISTOWN MT MID-RIVERS TELEPHONE COOPERATIVE, INC.
406-536 MT
406-537 MELVILLE MT TRIANGLE TELEPHONE COOPERATIVE ASSN., INC.
406-538 LEWISTOWN MT QWEST CORPORATION
406-539 BOZEMAN MT WESTERN WIRELESS CORPORATION-MT
406-540 MISSOULA MT 360NETWORKS (USA) INC. - MT
406-541 MISSOULA MT BLACKFOOT COMMUNICATIONS, INC. - MT
406-542 MISSOULA MT QWEST CORPORATION
406-543 MISSOULA MT QWEST CORPORATION