Area code 406 covers part of Montanastate, covering most of Gallatin, Missoula, Yellowstone, Silver Bow, Deer Lodge counties. It was started on Jan 01, 2000. This region follows US/Mountain + Daylight Savings timezone. Other popular area codes that belong to Montana state include .
Date Changed | Change Details |
Apr 30, 2014 | Area code 406-502 was introduced on Apr 18, 2014 and subscribers are operational from Apr 30, 2014. |
Apr 23, 2014 | Area code 406-545 was introduced on Sep 08, 2004 and subscribers are operational from Apr 23, 2014. |
Apr 23, 2014 | Area code 406-558 was introduced on Sep 08, 2004 and subscribers are operational from Apr 23, 2014. |
Apr 19, 2014 | Area code 406-577 subscribers are operational from Apr 19, 2014. |
Apr 11, 2014 | Area code 406-589 subscribers are operational from Apr 11, 2014. |
Mar 24, 2014 | Area code 406-534 was introduced on Feb 26, 2014 and subscribers are operational from Mar 24, 2014. |
Area Code | City | County | Population | Network Operator |
406-502-0 | Helena | Lewis And Clark | 63,395 | Bresnan Broadband of Montana LLC - MT |
406-505-7 | Helena | Pondera | 6,153 | Zayo Group LLC - MT |
406-505-0 | Missoula | Pondera | 6,153 | New Cingular Wireless PCS LLC |
406-508-1 | Helena | Missoula | 109,299 | Zayo Group LLC - MT |
406-508-0 | Missoula | Missoula | 109,299 | Level 3 Communications LLC - MT |
406-511 | 844,513 | Travel Information Services | ||
406-513-0 | Helena | Lewis And Clark | 63,395 | Bresnan Broadband of Montana LLC - MT |
406-514-0 | Billings | Roosevelt | 10,425 | New Cingular Wireless PCS LLC |
406-515-0 | Missoula | Mineral | 4,223 | New Cingular Wireless PCS LLC |
406-518-0 | Billings | Gallatin | 89,513 | Zayo Group LLC - MT |
406-520-0 | Billings | Stillwater | 9,117 | MTPCS LLC |
406-521-0 | Helena | Broadwater | 5,612 | Cellco Partnership dba Verizon Wireless - MT |
406-521-7 | Helena | Broadwater | 5,612 | Zayo Group LLC - MT |
406-522 | Bozeman | Gallatin | 89,513 | Qwest Corporation |
406-523 | Missoula | Missoula | 109,299 | Qwest Corporation |
406-524-8 | Glasgow | Valley | 7,369 | Sagebrush Cellular Inc |
406-524-0 | Glasgow Afb | Valley | 7,369 | Nemont Telephone Cooperative Inc |
406-525-0 | Wolf Point | Roosevelt | 10,425 | Mid-Rivers Telephone Cooperative Inc |
406-526-0 | Fort Peck | Valley | 7,369 | Nemont Telephone Cooperative Inc |
406-526-7 | Glasgow | Valley | 7,369 | Sagebrush Cellular Inc |
406-527-7 | Glasgow | Phillips | 4,253 | Sagebrush Cellular Inc |
406-527-0 | Saco | Phillips | 4,253 | Nemont Telephone Cooperative Inc |
406-528 | Ronan | Lake | 28,746 | Ronan Telephone Company |
406-529 | Helena | Missoula | 109,299 | Cellco Partnership dba Verizon Wireless - MT |
406-530-9 | Billings | Yellowstone | 147,972 | Bandwidth.com CLEC LLC - MT |
406-530-0 | Billings | Yellowstone | 147,972 | Level 3 Communications LLC - MT |
406-530-4 | Billings | Yellowstone | 147,972 | New Cingular Wireless PCS LLC |
406-530-1 | Billings | Yellowstone | 147,972 | Zayo Group LLC - MT |
406-530-3 | Bozeman | Yellowstone | 147,972 | Montana Opticom LLC - MT |
406-531 | Helena | Missoula | 109,299 | Cellco Partnership dba Verizon Wireless - MT |
406-532 | Missoula | Missoula | 109,299 | Blackfoot Communications Inc - MT |
406-533-0 | Butte | Silver Bow | 34,200 | Qwest Corporation |
406-533-9 | Helena | Silver Bow | 34,200 | Cellco Partnership dba Verizon Wireless - MT |
406-534-9 | Billings | Yellowstone | 147,972 | Bandwidth.com CLEC LLC - MT |
406-534-0 | Billings | Yellowstone | 147,972 | Bresnan Broadband of Montana LLC - MT |
406-534-0 | Billings | Yellowstone | 147,972 | Level 3 Communications LLC - MT |
406-534-7 | Billings | Yellowstone | 147,972 | Zayo Group LLC - MT |
406-535 | Lewistown | Fergus | 11,586 | Mid-Rivers Telephone Cooperative Inc |
406-537 | Melville | Sweet Grass | 3,651 | Triangle Telephone Cooperative Association Inc |
406-538-0 | Lewistown | Fergus | 11,586 | Qwest Corporation |
406-539 | Billings | Gallatin | 89,513 | New Cingular Wireless PCS LLC |
406-540-3 | Helena | Missoula | 109,299 | Cellco Partnership dba Verizon Wireless - MT |
406-540-0 | Helena | Missoula | 109,299 | Zayo Group LLC - MT |
406-541 | Missoula | Missoula | 109,299 | Blackfoot Communications Inc - MT |
406-542 | Missoula | Missoula | 109,299 | Qwest Corporation |
406-543 | Missoula | Missoula | 109,299 | Qwest Corporation |
406-544 | Helena | Missoula | 109,299 | Cellco Partnership dba Verizon Wireless - MT |
406-545-0 | Billings | Yellowstone | 147,972 | Level 3 Communications LLC - MT |
406-545-9 | Billings | Yellowstone | 147,972 | Sprint Spectrum LP - MT |
406-545-7 | Billings | Yellowstone | 147,972 | Zayo Group LLC - MT |
406-546 | Helena | Missoula | 109,299 | Cellco Partnership dba Verizon Wireless - MT |
406-547-4 | Billings | Meagher | 1,891 | New Cingular Wireless PCS LLC |
406-547-0 | White Sulphur Springs | Meagher | 1,891 | Central Montana Communications Inc |
406-548-8 | Billings | Gallatin | 89,513 | Cellco Partnership dba Verizon Wireless - MT |
406-548-0 | Bozeman | Gallatin | 89,513 | Qwest Corporation |
406-549 | Missoula | Missoula | 109,299 | Qwest Corporation |
406-550-0 | Helena | Missoula | 109,299 | Sprint Spectrum LP - MT |
406-551-5 | Billings | Gallatin | 89,513 | Cellco Partnership dba Verizon Wireless - MT |
406-551-0 | Billings | Gallatin | 89,513 | Level 3 Communications LLC - MT |
406-551-1 | Billings | Gallatin | 89,513 | Zayo Group LLC - MT |
406-551-2 | Bozeman | Gallatin | 89,513 | Bresnan Broadband of Montana LLC - MT |
406-552-9 | Helena | Missoula | 109,299 | Cellco Partnership dba Verizon Wireless - MT |
406-552-0 | Missoula | Missoula | 109,299 | Level 3 Communications LLC - MT |
406-552-6 | Missoula | Missoula | 109,299 | Qwest Corporation |
406-553-0 | Missoula | Silver Bow | 34,200 | MTPCS LLC |
406-554 | North Broadus | Powder River | 1,743 | Range Telephone Cooperative Inc |
406-555 | 189,557 | DIRECTORY ASSISTANCE | ||
406-556 | Bozeman | Gallatin | 89,513 | Qwest Corporation |
406-557-0 | Jordan | Garfield | 1,206 | Mid-Rivers Telephone Cooperative Inc |
406-558-9 | Helena | Lewis And Clark | 63,395 | Sprint Spectrum LP - MT |
406-558-0 | Missoula | Lewis And Clark | 63,395 | Level 3 Communications LLC - MT |
406-559-5 | Helena | Deer Lodge | 9,298 | Bresnan Broadband of Montana LLC - MT |
406-559-0 | Helena | Deer Lodge | 9,298 | Cellco Partnership dba Verizon Wireless - MT |
406-559-3 | Helena | Deer Lodge | 9,298 | Zayo Group LLC - MT |
406-559-2 | Missoula | Deer Lodge | 9,298 | Level 3 Communications LLC - MT |
406-559-6 | Missoula | Deer Lodge | 9,298 | New Cingular Wireless PCS LLC |
406-560-0 | Helena | Deer Lodge | 9,298 | Cellco Partnership dba Verizon Wireless - MT |
406-561-0 | Missoula | Toole | 5,324 | MTPCS LLC |
406-562 | Augusta | Lewis And Clark | 63,395 | 3 Rivers Telephone Cooperative Inc |
406-563-0 | Anaconda | Deer Lodge | 9,298 | Qwest Corporation |
406-563-0 | Helena | Deer Lodge | 9,298 | Bresnan Broadband of Montana LLC - MT |
406-563-1 | Missoula | Deer Lodge | 9,298 | Eltopia Communications LLC - MT |
406-564-9 | Helena | Cascade | 81,327 | Cellco Partnership dba Verizon Wireless - MT |
406-564-0 | Missoula | Cascade | 81,327 | Level 3 Communications LLC - MT |
406-564-6 | Missoula | Cascade | 81,327 | New Cingular Wireless PCS LLC |
406-565-5 | Helena | Silver Bow | 34,200 | Bresnan Broadband of Montana LLC - MT |
406-565-8 | Helena | Silver Bow | 34,200 | Cellco Partnership dba Verizon Wireless - MT |
406-565-9 | Helena | Silver Bow | 34,200 | Sprint Spectrum LP - MT |
406-565-0 | Missoula | Silver Bow | 34,200 | Level 3 Communications LLC - MT |
406-566 | Stanford | Judith Basin | 2,072 | Central Montana Communications Inc |
406-567 | Denton | Fergus | 11,586 | Central Montana Communications Inc |
406-568 | Ryegate | Golden Valley | 884 | Mid-Rivers Telephone Cooperative Inc |
406-569 | Squaw Gap | Richland | 9,746 | Reservation Telephone Cooperative |
406-570 | Billings | Gallatin | 89,513 | Cellco Partnership dba Verizon Wireless - MT |
406-571-8 | Helena | Lake | 28,746 | Zayo Group LLC - MT |
406-571-0 | Missoula | Lake | 28,746 | Bresnan Broadband of Montana LLC - MT |
406-571-0 | Missoula | Lake | 28,746 | Eltopia Communications LLC - MT |
406-572 | White Sulphur Springs | Meagher | 1,891 | Central Montana Communications Inc |
406-573-0 | Missoula | Glacier | 13,399 | MTPCS LLC |
406-574-0 | Powell | Carbon | 10,078 | Qwest Corporation |
406-575 | Ryegate | Golden Valley | 884 | Mid-Rivers Telephone Cooperative Inc |
406-576-0 | Missoula | Pondera | 6,153 | MTPCS LLC |
406-577-2 | Billings | Gallatin | 89,513 | Bresnan Broadband of Montana LLC - MT |
406-577-1 | Billings | Gallatin | 89,513 | Zayo Group LLC - MT |
406-578-4 | Billings | Park | 15,636 | Bandwidth.com CLEC LLC - MT |
406-578-7 | Billings | Park | 15,636 | Zayo Group LLC - MT |
406-579 | Billings | Gallatin | 89,513 | Cellco Partnership dba Verizon Wireless - MT |
406-580 | Billings | Gallatin | 89,513 | New Cingular Wireless PCS LLC |
406-581 | Billings | Gallatin | 89,513 | Cellco Partnership dba Verizon Wireless - MT |
406-582 | Bozeman | Gallatin | 89,513 | Qwest Corporation |
406-583 | Bloomfield | Dawson | 8,966 | Mid-Rivers Telephone Cooperative Inc |
406-584-0 | Lindsay | Dawson | 8,966 | Mid-Rivers Telephone Cooperative Inc |
406-585 | Bozeman | Gallatin | 89,513 | Qwest Corporation |
406-586 | Bozeman | Gallatin | 89,513 | Qwest Corporation |
406-587 | Bozeman | Gallatin | 89,513 | Qwest Corporation |
406-588 | Carlyle | Wibaux | 1,017 | Mid-Rivers Telephone Cooperative Inc |
406-589-0 | Billings | Gallatin | 89,513 | Cellco Partnership dba Verizon Wireless - MT |
406-590 | Missoula | Cascade | 81,327 | MTPCS LLC |
406-591 | Billings | Yellowstone | 147,972 | MTPCS LLC |
406-592 | Busby | Big Horn | 12,865 | Range Telephone Cooperative Inc |
406-593-0 | Missoula | Silver Bow | 34,200 | MTPCS LLC |
406-594 | Missoula | Lewis And Clark | 63,395 | MTPCS LLC |
406-595 | Billings | Gallatin | 89,513 | MTPCS LLC |
406-596-0 | Missoula | Beaverhead | 9,246 | MTPCS LLC |
406-597-0 | Missoula | Toole | 5,324 | MTPCS LLC |
406-598 | Billings | Yellowstone | 147,972 | MTPCS LLC |
406-599 | Billings | Gallatin | 89,513 | Cellco Partnership dba Verizon Wireless - MT |
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