In the 406 area code, Billings, Missoula, Great Falls, and others are the main locations covered by the company (see below for a city list).
Since 01 January 1947, area code 406 has been in service.
In area code 406 (Mountain Time), the current time is 1:39:35 PM.
406 Area Code Phone Lookup
Map of area code 406
Nearby to the 406 Area Codes
you’re probably always looking location map, cities, time zone, overlay codes, reverse phone lookup and related info. Well, one easy way to do that is by knowing your nearby area codes. That way, you don’t have to fumble through your phone’s keypad each time you want to make a call. Plus, it can come in handy when trying to find out where someone is calling from. So without further ado, here are the area codes for some of the most popular U.S. cities!
List of 406-NXX Prefixes and Corresponding Locations
We all know our location by its name and zip code, but do you know your city’s postal prefix? Chances are, unless you work for the post office or are extremely interested in the subject matter, you don’t. But prefixes play a critical role in how mail is sorted and delivered, so it’s important to be aware of them. This blog post will take a closer look at what prefixes are and their corresponding locations. Stay tuned!
Are you curious about the prefixes and corresponding locations of the area code 406? This infographic is a great place to start. It provides an overview of 406 area code, including its name, prefixes and date. The infographic also includes a map that shows the location of each area code. this guide is sure to come in handy. Enjoy!
| NPANXX | Area served | Date |
|---|---|---|
| 406-200 | Billings | 4/17/2012 |
| 406-201 | Forsyth | 1/21/2003 |
| 406-202 | Helena | 4/18/2001 |
| 406-203 | Missoula | |
| 406-204 | Helena | |
| 406-205 | Great Falls | |
| 406-206 | Billings | |
| 406-207 | Missoula | 4/18/2001 |
| 406-208 | Billings | 4/18/2001 |
| 406-209 | Bozeman | 4/18/2001 |
| 406-210 | Seeley Lake | |
| 406-212 | Kalispell | 4/18/2001 |
| 406-213 | Colstrip | 5/6/2003 |
| 406-214 | Missoula | |
| 406-215 | Missoula | |
| 406-216 | Great Falls | |
| 406-217 | Great Falls | |
| 406-218 | Missoula | 8/3/2004 |
| 406-219 | Bozeman | 2/13/2003 |
| 406-220 | Livingston | |
| 406-221 | Butte | 2/13/2003 |
| 406-222 | Livingston | |
| 406-223 | Livingston | |
| 406-224 | Livingston | |
| 406-225 | Boulder | |
| 406-226 | East Glacier Park | |
| 406-227 | Helena | |
| 406-228 | Glasgow | |
| 406-229 | Cut Bank | 1/20/2003 |
| 406-230 | Glasgow | |
| 406-231 | Great Falls | 7/12/2001 |
| 406-232 | Miles City | |
| 406-233 | Miles City | |
| 406-234 | Miles City | |
| 406-235 | Wolf Creek | |
| 406-236 | Neihart | |
| 406-237 | Billings | |
| 406-238 | Billings | |
| 406-239 | Missoula | |
| 406-240 | Missoula | |
| 406-241 | Missoula | |
| 406-242 | Thompson Falls | 3/18/2003 |
| 406-243 | Missoula | |
| 406-244 | Potomac | |
| 406-245 | Billings | |
| 406-246 | Dixon | |
| 406-247 | Billings | |
| 406-248 | Billings | |
| 406-249 | Kalispell | |
| 406-250 | Kalispell | |
| 406-251 | Missoula | |
| 406-252 | Billings | |
| 406-253 | Kalispell | |
| 406-254 | Billings | |
| 406-255 | Billings | |
| 406-256 | Billings | |
| 406-257 | Kalispell | |
| 406-258 | Missoula | |
| 406-259 | Billings | |
| 406-260 | Kalispell | |
| 406-261 | Kalispell | |
| 406-262 | Havre | |
| 406-263 | Glasgow | |
| 406-264 | Fort Shaw | |
| 406-265 | Havre | |
| 406-266 | Townsend | |
| 406-267 | Divide | |
| 406-268 | Great Falls | |
| 406-269 | St Regis | 10/12/2010 |
| 406-270 | Kalispell | |
| 406-271 | Conrad | |
| 406-272 | Billings | |
| 406-273 | Missoula | |
| 406-274 | Missoula | |
| 406-275 | Pablo | |
| 406-276 | Lima | |
| 406-277 | Belt | |
| 406-278 | Conrad | |
| 406-279 | Valier | |
| 406-280 | St Regis | 3/18/2003 |
| 406-281 | Billings | |
| 406-282 | Manhattan | |
| 406-283 | Libby | |
| 406-284 | Manhattan | |
| 406-285 | Three Forks | |
| 406-286 | Reserve | |
| 406-287 | Whitehall | |
| 406-288 | Drummond | |
| 406-289 | Conrad | |
| 406-290 | Columbus | 3/14/2007 |
| 406-291 | Libby | |
| 406-292 | Joplin | |
| 406-293 | Libby | |
| 406-294 | Billings | |
| 406-295 | Troy | |
| 406-296 | Eureka | |
| 406-297 | Eureka Rural | |
| 406-298 | Columbus | |
| 406-299 | Butte | 1/23/2003 |
| 406-300 | Kalispell | 7/17/2013 |
| 406-301 | Malta | 5/6/2008 |
| 406-302 | Wolf Creek | 10/3/2011 |
| 406-303 | Missoula | 4/17/2012 |
| 406-304 | Missoula | 3/25/2016 |
| 406-305 | White Sulphur Springs | 10/20/2010 |
| 406-306 | Manhattan | 10/20/2017 |
| 406-308 | Cascade | 9/5/2017 |
| 406-309 | Kalispell | 7/1/2011 |
| 406-310 | Butte | |
| 406-312 | Bozeman | |
| 406-313 | Boulder | 11/16/2012 |
| 406-314 | Kalispell | 10/21/2004 |
| 406-315 | Great Falls | |
| 406-316 | Boulder | 7/12/2019 |
| 406-317 | Missoula | |
| 406-318 | Billings | 2/17/2011 |
| 406-319 | Polson | |
| 406-320 | Roundup | |
| 406-321 | Columbus | |
| 406-322 | Columbus | |
| 406-323 | Roundup | |
| 406-324 | Helena | |
| 406-325 | Billings | |
| 406-326 | Reed Point | |
| 406-327 | Missoula | |
| 406-328 | Absarokee | |
| 406-329 | Missoula | |
| 406-330 | Clinton | |
| 406-331 | Roundup | |
| 406-332 | Pablo | |
| 406-333 | Livingston | |
| 406-334 | Libby | 5/10/2004 |
| 406-335 | Sweet Grass | |
| 406-336 | North Cut Bank | |
| 406-337 | Kevin/Oilmont | |
| 406-338 | Browning | |
| 406-339 | Ethridge | |
| 406-340 | Lima | |
| 406-341 | Manhattan | 7/6/2020 |
| 406-342 | Hysham | |
| 406-343 | Wyola | |
| 406-344 | Havre | 7/28/2016 |
| 406-345 | Glendive | |
| 406-346 | Forsyth | 7/11/2002 |
| 406-347 | Rosebud | |
| 406-348 | Huntley | |
| 406-349 | Alta | |
| 406-350 | Lewistown | |
| 406-351 | Forsyth | |
| 406-352 | Box Elder | |
| 406-353 | Harlem | |
| 406-354 | Rock Springs | |
| 406-355 | Rudyard | |
| 406-356 | Forsyth | |
| 406-357 | Chinook | |
| 406-358 | Melstone | |
| 406-359 | Glendive | |
| 406-360 | Hamilton | |
| 406-361 | Hamilton | 6/9/2011 |
| 406-362 | Lincoln | |
| 406-363 | Hamilton | |
| 406-364 | Hinsdale | |
| 406-365 | Glendive | |
| 406-366 | Lewistown | |
| 406-367 | North Glasgow | |
| 406-368 | Canyon Creek | |
| 406-369 | Hamilton | |
| 406-370 | Missoula | |
| 406-371 | Billings | 7/27/2004 |
| 406-372 | Kremlin | |
| 406-373 | Billings | |
| 406-374 | Moore | |
| 406-375 | Hamilton | |
| 406-376 | Gildford | |
| 406-377 | Glendive | |
| 406-378 | Big Sandy | |
| 406-379 | Turner | |
| 406-380 | Lewistown | |
| 406-381 | Hamilton | |
| 406-382 | Superior | 3/18/2003 |
| 406-383 | Dodson | |
| 406-384 | Billings | |
| 406-385 | Westby | |
| 406-386 | Hopp/Illiad | |
| 406-387 | Hungry Horse | |
| 406-388 | Belgrade | |
| 406-389 | Helena | 9/18/2013 |
| 406-390 | South Havre | |
| 406-391 | Cut Bank | |
| 406-392 | North Wolf Point | |
| 406-393 | Somers | 3/30/2006 |
| 406-394 | North Havre | |
| 406-395 | South Havre | |
| 406-396 | Missoula | 11/26/2003 |
| 406-397 | Hingham | |
| 406-398 | North Havre | |
| 406-399 | South Havre | |
| 406-400 | Havre | 4/27/2017 |
| 406-401 | Great Falls | 5/29/2019 |
| 406-402 | Great Falls | 8/4/2017 |
| 406-403 | Great Falls | 3/8/2006 |
| 406-404 | Bozeman | 4/3/2012 |
| 406-407 | Kalispell | 8/16/2010 |
| 406-408 | Hays | 10/15/2019 |
| 406-409 | Billings | 5/29/2019 |
| 406-410 | Helena | |
| 406-412 | Billings | 5/22/2017 |
| 406-413 | Billings | 5/12/2015 |
| 406-414 | Bozeman | 12/7/2011 |
| 406-415 | Deer Lodge | 4/9/2010 |
| 406-416 | Forsyth | 6/17/2020 |
| 406-417 | Helena | 5/28/2008 |
| 406-418 | Cooke City | 8/20/2019 |
| 406-419 | Victor | 7/12/2019 |
| 406-420 | Bigfork | 2/28/2006 |
| 406-421 | South Miles City | |
| 406-422 | Helena | |
| 406-423 | Hobson | |
| 406-424 | Shelby | 11/12/2001 |
| 406-425 | Red Lodge | |
| 406-426 | Red Lodge | |
| 406-427 | South Broadus | |
| 406-428 | Grass Range | |
| 406-429 | Winnett | |
| 406-430 | Helena | |
| 406-431 | Helena | |
| 406-432 | Devon | |
| 406-433 | Sidney | |
| 406-434 | Shelby | |
| 406-435 | Billings | |
| 406-436 | Broadus | |
| 406-437 | Helena | 7/27/2004 |
| 406-438 | Helena | 2/6/2014 |
| 406-439 | Helena | |
| 406-440 | Helena | 7/1/2005 |
| 406-441 | Helena | |
| 406-442 | Helena | |
| 406-443 | Helena | |
| 406-444 | Helena | |
| 406-445 | Red Lodge | |
| 406-446 | Red Lodge | |
| 406-447 | Helena | |
| 406-448 | North Poplar | |
| 406-449 | Helena | |
| 406-450 | Shelby | |
| 406-451 | Bozeman | 8/4/2004 |
| 406-452 | Great Falls | |
| 406-453 | Great Falls | |
| 406-454 | Great Falls | |
| 406-455 | Great Falls | |
| 406-456 | South Chester | |
| 406-457 | Helena | |
| 406-458 | Helena | |
| 406-459 | Helena | |
| 406-460 | Shelby | |
| 406-461 | Helena | |
| 406-462 | Winifred | |
| 406-463 | Power | |
| 406-464 | Roy | |
| 406-465 | Helena | |
| 406-466 | Choteau | |
| 406-467 | Fairfield | |
| 406-468 | Cascade | |
| 406-469 | Pendroy | |
| 406-470 | Shelby | |
| 406-471 | Kalispell | 6/1/2005 |
| 406-472 | Dupuyer | |
| 406-473 | Judith Gap | |
| 406-474 | Flaxville | |
| 406-475 | Helena | |
| 406-476 | Dutton | |
| 406-477 | Lame Deer | |
| 406-478 | Sidney | |
| 406-479 | Butte | 10/3/2013 |
| 406-480 | Sidney | |
| 406-482 | Sidney | |
| 406-483 | Dagmar | |
| 406-484 | Crooked Creek | |
| 406-485 | Circle | |
| 406-486 | Fallon | |
| 406-487 | Scobey | |
| 406-488 | Sidney | |
| 406-489 | Sidney | |
| 406-490 | Butte | |
| 406-491 | Butte | |
| 406-492 | Avon | |
| 406-493 | Missoula | |
| 406-494 | Butte | |
| 406-495 | Helena | |
| 406-496 | Butte | |
| 406-497 | Butte | |
| 406-498 | Butte | |
| 406-499 | Seeley Lake | 3/18/2003 |
| 406-500 | Billings | 1/29/2019 |
| 406-501 | Whitehall | 8/20/2019 |
| 406-502 | Helena | 4/3/2012 |
| 406-504 | Fairfield | 2/12/2021 |
| 406-505 | Conrad | 10/14/2010 |
| 406-506 | Billings | 6/1/2020 |
| 406-508 | Frenchtown | 2/3/2012 |
| 406-510 | Missoula | 3/22/2017 |
| 406-513 | Helena | 4/8/2008 |
| 406-514 | Culbertson | 10/20/2010 |
| 406-515 | Superior | 10/12/2010 |
| 406-518 | Gallatin Gateway | 9/27/2011 |
| 406-519 | Missoula | |
| 406-520 | Absarokee | |
| 406-521 | Townsend | |
| 406-522 | Bozeman | |
| 406-523 | Missoula | |
| 406-524 | Valley Industrial Park | |
| 406-525 | South Wolf Point | |
| 406-526 | Fort Peck | |
| 406-527 | Saco | |
| 406-528 | Ronan | |
| 406-529 | Missoula | 9/16/2005 |
| 406-530 | Laurel | |
| 406-531 | Missoula | |
| 406-532 | Missoula | |
| 406-533 | Butte | |
| 406-534 | Billings | |
| 406-535 | Lewistown | |
| 406-537 | Melville | |
| 406-538 | Lewistown | |
| 406-539 | Bozeman | |
| 406-540 | Missoula | |
| 406-541 | Missoula | |
| 406-542 | Missoula | |
| 406-543 | Missoula | |
| 406-544 | Missoula | |
| 406-545 | Billings | 6/19/2002 |
| 406-546 | Missoula | |
| 406-547 | White Sulphur Springs | |
| 406-548 | Bozeman | |
| 406-549 | Missoula | |
| 406-550 | Missoula | |
| 406-551 | Bozeman | 6/19/2002 |
| 406-552 | Missoula | 6/19/2002 |
| 406-553 | Divide | |
| 406-554 | North Broadus | |
| 406-556 | Bozeman | |
| 406-557 | Jordan | |
| 406-558 | Helena | 6/19/2002 |
| 406-559 | Anaconda | |
| 406-560 | Anaconda | |
| 406-561 | Billings | 8/2/2017 |
| 406-562 | Augusta | |
| 406-563 | Anaconda | |
| 406-564 | Great Falls | 6/19/2002 |
| 406-565 | Butte | 6/19/2002 |
| 406-566 | Stanford | |
| 406-567 | Denton | |
| 406-568 | Ryegate | |
| 406-569 | West Squaw Gap | |
| 406-570 | Bozeman | |
| 406-571 | Finley Point | |
| 406-572 | Martinsdale | |
| 406-573 | Browning | |
| 406-574 | Silvertip | |
| 406-575 | North Ryegate | |
| 406-576 | Conrad | |
| 406-577 | Bozeman | |
| 406-578 | Walsall | |
| 406-579 | Bozeman | |
| 406-580 | Bozeman | |
| 406-581 | Bozeman | |
| 406-582 | Bozeman | |
| 406-583 | Bloomfield | |
| 406-584 | Lindsay | |
| 406-585 | Bozeman | |
| 406-586 | Bozeman | |
| 406-587 | Bozeman | |
| 406-588 | Carlyle | |
| 406-589 | Bozeman | |
| 406-590 | Great Falls | |
| 406-591 | Billings | |
| 406-592 | Busby | |
| 406-593 | Butte | |
| 406-594 | Helena | |
| 406-595 | Bozeman | |
| 406-596 | Dillon | |
| 406-597 | Shelby | |
| 406-598 | Billings | |
| 406-599 | Bozeman | 10/26/2004 |
| 406-600 | Bozeman | 4/13/2006 |
| 406-601 | Billings | 11/8/2013 |
| 406-602 | Bozeman | 11/8/2013 |
| 406-603 | Helena | 11/8/2013 |
| 406-604 | Great Falls | 7/15/2011 |
| 406-605 | Butte | 4/18/2021 |
| 406-606 | Billings | 12/7/2012 |
| 406-607 | Kalispell | 11/8/2013 |
| 406-608 | Billings | 5/6/2021 |
| 406-609 | Kalispell | 3/24/2021 |
| 406-612 | Swan Lake | 10/11/2007 |
| 406-613 | Hamilton | 10/22/2021 |
| 406-614 | Bigfork | 10/13/2020 |
| 406-615 | Thompson Falls | 4/28/2014 |
| 406-616 | Three Forks | 7/1/2011 |
| 406-620 | Billings | 12/6/2005 |
| 406-621 | Fort Benton | |
| 406-622 | Fort Benton | |
| 406-623 | Hardin | 2/16/2005 |
| 406-624 | Bozeman | 2/3/2005 |
| 406-625 | Stevensville | |
| 406-626 | Frenchtown | |
| 406-627 | East Conrad | |
| 406-628 | Laurel | |
| 406-629 | Hardin | |
| 406-630 | Sidney | 2/16/2005 |
| 406-631 | Elmo | 7/26/2007 |
| 406-632 | Harlowton | |
| 406-633 | Laurel | |
| 406-634 | Helena | |
| 406-635 | Terry | |
| 406-636 | Lavina | |
| 406-637 | Terry | |
| 406-638 | Hardin | |
| 406-639 | Lodge grass | |
| 406-640 | West Yellowstone | |
| 406-641 | West Yellowstone | |
| 406-642 | Victor | |
| 406-643 | North Parkman | 5/24/2007 |
| 406-644 | Charlo | |
| 406-645 | Deer Lodge | |
| 406-646 | West Yellowstone | |
| 406-647 | Billings | 7/3/2008 |
| 406-648 | North Hinsdale | |
| 406-649 | St Regis | |
| 406-650 | Wolf Point | |
| 406-651 | Billings | |
| 406-652 | Billings | |
| 406-653 | Wolf Point | |
| 406-654 | Malta | |
| 406-655 | Billings | |
| 406-656 | Billings | |
| 406-657 | Billings | |
| 406-658 | South Malta | |
| 406-659 | North Parkman | |
| 406-660 | Dillon | |
| 406-661 | Billings | |
| 406-662 | Bridger | |
| 406-663 | Rapelje | |
| 406-664 | Belfry | |
| 406-665 | Hardin | |
| 406-666 | Fort Smith | |
| 406-667 | Broadview | |
| 406-668 | Fromberg | |
| 406-669 | Molt | |
| 406-670 | Billings | |
| 406-671 | Billings | |
| 406-672 | Billings | |
| 406-673 | Hays | |
| 406-674 | Whitewater | |
| 406-675 | Pablo | |
| 406-676 | Ronan | |
| 406-677 | Seeley Lake | |
| 406-678 | Haugan | |
| 406-679 | Hardin | |
| 406-680 | Malta | 1/10/2005 |
| 406-681 | Grant | |
| 406-682 | Ennis | |
| 406-683 | Dillon | |
| 406-684 | Twin Bridges | |
| 406-685 | Harrison | |
| 406-686 | Clyde Park | |
| 406-687 | W Glendive | |
| 406-688 | Scobey | 2/10/2014 |
| 406-689 | Wisdom | |
| 406-690 | Billings | |
| 406-691 | Anaconda | |
| 406-692 | Yellow Bay | 10/11/2007 |
| 406-693 | Warm Springs | |
| 406-694 | Billings | 1/5/2005 |
| 406-695 | Frazer | |
| 406-696 | Billings | 6/15/2006 |
| 406-697 | Billings | 4/21/2005 |
| 406-698 | Billings | |
| 406-699 | Hardin | |
| 406-702 | Billings | 3/7/2012 |
| 406-703 | Columbus | 5/24/2021 |
| 406-707 | Lewistown | |
| 406-708 | Lewistown | 2/16/2005 |
| 406-709 | Lakeside | |
| 406-715 | Lame Deer | 9/22/2015 |
| 406-717 | Billings | 6/6/2018 |
| 406-718 | Darby | 4/12/2021 |
| 406-719 | Fromberg | 8/20/2019 |
| 406-720 | Colstrip | |
| 406-721 | Missoula | |
| 406-722 | Alberton | |
| 406-723 | Butte | |
| 406-724 | Glentana | |
| 406-725 | Larslan | |
| 406-726 | Arlee | |
| 406-727 | Great Falls | |
| 406-728 | Missoula | |
| 406-729 | Walsall | 9/8/2016 |
| 406-730 | Whitefish | |
| 406-731 | Great Falls | |
| 406-732 | St Mary | |
| 406-733 | Highwood | |
| 406-734 | Carter | |
| 406-735 | Geyser | |
| 406-736 | Stockett | |
| 406-737 | Geraldine | |
| 406-738 | Raynesford | |
| 406-739 | Loma | |
| 406-740 | Colstrip | |
| 406-741 | Hot Springs | |
| 406-742 | Fairview | |
| 406-743 | Laurel | 9/8/2006 |
| 406-744 | St Ignatius | 11/16/2012 |
| 406-745 | St Ignatius | |
| 406-746 | Nashua | |
| 406-747 | Fairview | |
| 406-748 | Colstrip | |
| 406-749 | Colstrip | |
| 406-750 | Great Falls | 8/22/2005 |
| 406-751 | Kalispell | |
| 406-752 | Kalispell | |
| 406-753 | Brady | |
| 406-754 | Condon | |
| 406-755 | Kalispell | |
| 406-756 | Kalispell | |
| 406-757 | Decker | |
| 406-758 | Kalispell | |
| 406-759 | Chester | |
| 406-760 | Great Falls | |
| 406-761 | Great Falls | |
| 406-762 | Opheim | |
| 406-763 | Gallatin Gateway | |
| 406-764 | North Frannie | |
| 406-765 | Plentywood | |
| 406-766 | Froid | |
| 406-767 | Ridge | |
| 406-768 | Poplar | |
| 406-769 | Bainville | |
| 406-770 | Great Falls | |
| 406-771 | Great Falls | |
| 406-772 | Plevna | |
| 406-773 | Richey | |
| 406-774 | Lambert | |
| 406-775 | Ekalaka | |
| 406-776 | Savage | |
| 406-777 | Stevensville | |
| 406-778 | Baker | |
| 406-779 | Flaxville Rural | |
| 406-780 | Columbus | |
| 406-781 | Great Falls | |
| 406-782 | Butte | |
| 406-783 | Scobey Rural | |
| 406-784 | Ashland | |
| 406-785 | North Nashua | |
| 406-786 | Brockton | |
| 406-787 | Culbertson | |
| 406-788 | Great Falls | |
| 406-789 | Medicine Lake | |
| 406-790 | Culbertson | |
| 406-791 | Great Falls | |
| 406-792 | Butte | |
| 406-793 | Ovando | |
| 406-794 | Billings | 3/15/2006 |
| 406-795 | Wibaux | |
| 406-796 | Wibaux | |
| 406-797 | Anaconda | |
| 406-798 | West Sidney | |
| 406-799 | Great Falls | |
| 406-800 | Bridger | 12/11/2013 |
| 406-802 | Hamilton | |
| 406-804 | Gardiner | 8/20/2019 |
| 406-807 | East Glacier Park | 4/22/2021 |
| 406-808 | Havre | |
| 406-812 | Laurel | 10/3/2011 |
| 406-813 | Belgrade | 9/14/2011 |
| 406-815 | Red Lodge | |
| 406-818 | Red Lodge | |
| 406-820 | Olney | 10/11/2007 |
| 406-821 | Darby | |
| 406-822 | Superior | |
| 406-823 | Livingston | |
| 406-824 | St Ignatius | |
| 406-825 | Clinton | |
| 406-826 | Plains | |
| 406-827 | Thompson Falls | |
| 406-828 | Alzada | |
| 406-829 | Missoula | |
| 406-830 | Missoula | 2/6/2007 |
| 406-831 | Billings | 12/21/2016 |
| 406-832 | Wise River | |
| 406-833 | Ronan | |
| 406-834 | Jackson | |
| 406-835 | Melrose | |
| 406-836 | Great Falls | |
| 406-837 | Bigfork | |
| 406-838 | Cooke City | |
| 406-839 | Billings | 9/30/2006 |
| 406-840 | Silvertip | 5/23/2007 |
| 406-841 | Helena | |
| 406-842 | Sheridan | |
| 406-843 | Virginia City | |
| 406-844 | Lakeside | |
| 406-845 | Cut Bank | 10/27/2008 |
| 406-846 | Deer Lodge | |
| 406-847 | Noxon | |
| 406-848 | Gardiner | |
| 406-849 | Elmo | |
| 406-850 | Billings | |
| 406-851 | Miles City | |
| 406-852 | Miles City | |
| 406-853 | Miles City | |
| 406-854 | Marion | |
| 406-855 | Billings | |
| 406-856 | Custer | |
| 406-857 | Somers | |
| 406-858 | Kalispell | |
| 406-859 | Philipsburg | |
| 406-860 | Billings | |
| 406-861 | Billings | |
| 406-862 | Whitefish | |
| 406-863 | Whitefish | |
| 406-864 | South Alberton | |
| 406-865 | Dillon | |
| 406-866 | Great Falls | |
| 406-867 | Billings | |
| 406-868 | Great Falls | |
| 406-869 | Billings | |
| 406-870 | Great Falls | |
| 406-871 | Kalispell | 6/15/2006 |
| 406-872 | Polson | 10/15/2007 |
| 406-873 | Cut Bank | |
| 406-874 | Miles City | |
| 406-875 | Pompey Pillar | |
| 406-876 | Billings | |
| 406-877 | West Beach | |
| 406-878 | Great Falls | 3/1/2013 |
| 406-879 | Havre | 11/11/2009 |
| 406-880 | Missoula | |
| 406-881 | Olney | |
| 406-882 | Eureka Rural | |
| 406-883 | Polson | |
| 406-884 | Polson | |
| 406-885 | Kalispell | |
| 406-886 | Swan Lake | |
| 406-887 | Finley Point | |
| 406-888 | West Glacier | |
| 406-889 | Eureka Rural | |
| 406-890 | Kalispell | |
| 406-891 | Baker | |
| 406-892 | Columbia Falls | |
| 406-893 | Peerless | |
| 406-894 | Billings | |
| 406-895 | Outlook | |
| 406-896 | Billings | |
| 406-897 | Columbia Falls | |
| 406-898 | Bozeman | 3/20/2009 |
| 406-899 | Great Falls | |
| 406-900 | Ennis | 9/29/2017 |
| 406-901 | Billings | 4/14/2021 |
| 406-902 | Sheridan | 11/27/2018 |
| 406-905 | Joliet | 10/3/2011 |
| 406-909 | Columbia Falls | 5/24/2018 |
| 406-913 | Roundup | |
| 406-914 | Lambert | |
| 406-915 | South Wolf Point | |
| 406-916 | Helena | 3/24/2017 |
| 406-919 | Belgrade | 3/4/2019 |
| 406-920 | Bozeman | |
| 406-922 | Bozeman | |
| 406-923 | Great Falls | 1/3/2005 |
| 406-924 | Belgrade | 10/26/2004 |
| 406-925 | Dillon | |
| 406-926 | Missoula | 1/7/2011 |
| 406-927 | Billings | 7/23/2010 |
| 406-928 | Grass Range | |
| 406-929 | Hungry Horse | 7/26/2007 |
| 406-930 | Big Timber | |
| 406-931 | Big Timber | |
| 406-932 | Big Timber | |
| 406-933 | Helena | |
| 406-934 | Miles City | |
| 406-935 | Broadus | |
| 406-936 | Clyde Park | 7/15/2015 |
| 406-937 | Sunburst | |
| 406-938 | Alzada | |
| 406-939 | West Glendive | |
| 406-940 | Molt | 7/18/2017 |
| 406-941 | West Glendive | |
| 406-942 | Glasgow | 10/23/2009 |
| 406-943 | Sidney | 1/9/2003 |
| 406-944 | Miles City | 1/9/2003 |
| 406-945 | Havre | |
| 406-946 | Livingston | 1/9/2003 |
| 406-947 | Musselshell | |
| 406-948 | Glendive | 1/9/2003 |
| 406-949 | Townsend | |
| 406-951 | Miles City | |
| 406-952 | Great Falls | |
| 406-953 | Hardin | |
| 406-954 | Roy | |
| 406-956 | Baker | 10/20/2010 |
| 406-957 | Terry | |
| 406-960 | Dillon | 1/9/2003 |
| 406-961 | Hamilton | |
| 406-962 | Joliet | |
| 406-963 | Froid Rural | |
| 406-964 | Great Falls | |
| 406-965 | Great Falls | |
| 406-966 | Shelby | 1/9/2003 |
| 406-967 | Worden | |
| 406-968 | Lewistown | 1/9/2003 |
| 406-969 | Billings | |
| 406-970 | Billings | 6/3/2016 |
| 406-971 | Plevna | |
| 406-972 | West Camp Crook | |
| 406-973 | Sidney | |
| 406-974 | Circle | |
| 406-975 | Ekalaka | |
| 406-977 | Jordan | |
| 406-978 | Baker | |
| 406-979 | Richey | |
| 406-980 | Townsend | |
| 406-981 | South Miles City | |
| 406-982 | Yellow Bay | |
| 406-983 | Ashland | |
| 406-984 | Birney | |
| 406-987 | Glendive | |
| 406-988 | Dillon | 1/7/2005 |
| 406-989 | West Glendive | |
| 406-990 | Lame Deer | 5/12/2020 |
| 406-991 | Marion | 10/11/2007 |
| 406-992 | Helena | 8/26/2008 |
| 406-993 | Big Sky | |
| 406-994 | Bozeman | |
| 406-995 | Big Sky | |
| 406-996 | Helena | 1/10/2011 |
| 406-998 | Billings | 8/26/2015 |
| 406-999 | Big Sky | 7/11/2006 |
- The NPA (numbering plan area) and the NXX (central office code) stand for the same thing.
- The area served is listed under ‘Area served’. Rate centers are geographical areas used for determining billing boundaries in the North American Numbering Plan. Named after a locality, sometimes not the only one served by an NPA-NXX combination.
- Date of assignment. Exchange codes assigned before 2001 do not have a date listed.
List of Cities in Area Code 406
Looking to find out what cities are in your area code 406? You’ve come to the right place! We’ve put together a comprehensive list of major cities and their corresponding area codes. Whether you’re looking to relocate or just curious, you’ll be able to find what you need here.
So without further ado, let’s get started! We’ve compiled a list of every city in the 406 area code with the corresponding phone number. We hope you find this information helpful!
| City | County | Time |
|---|---|---|
| Absarokee | Stillwater | M |
| Acton | Yellowstone | M |
| Alberton | Mineral | M |
| Alder | Madison | M |
| Alzada | Carter | M |
| Anaconda | Deer Lodge | M |
| Angela | Rosebud | M |
| Antelope | Sheridan | M |
| Arlee | Lake | M |
| Ashland | Rosebud | M |
| Augusta | Lewis And Clark | M |
| Avon | Powell | M |
| Babb | Glacier | M |
| Bainville | Roosevelt | M |
| Baker | Fallon | M |
| Ballantine | Yellowstone | M |
| Basin | Jefferson | M |
| Bearcreek | Carbon | M |
| Belfry | Carbon | M |
| Belgrade | Gallatin | M |
| Belt | Cascade | M |
| Biddle | Powder River | M |
| Big Arm | Lake | M |
| Big Sandy | Chouteau | M |
| Big Sky | Gallatin | M |
| Big Timber | Sweet Grass | M |
| Bigfork | Flathead | M |
| Bighorn | Treasure | M |
| Billings | Yellowstone | M |
| Birney | Rosebud | M |
| Black Eagle | Cascade | M |
| Bloomfield | Dawson | M |
| Bonner | Missoula | M |
| Boulder | Jefferson | M |
| Box Elder | Hill | M |
| Boyd | Carbon | M |
| Boyes | Carter | M |
| Bozeman | Gallatin | M |
| Brady | Pondera | M |
| Bridger | Carbon | M |
| Broadus | Powder River | M |
| Broadview | Yellowstone | M |
| Brockton | Roosevelt | M |
| Brockway | McCone | M |
| Browning | Glacier | M |
| Brusett | Garfield | M |
| Buffalo | Fergus | M |
| Busby | Big Horn | M |
| Butte | Silver Bow | M |
| Bynum | Teton | M |
| Cameron | Madison | M |
| Canyon Creek | Lewis And Clark | M |
| Capitol | Carter | M |
| Cardwell | Jefferson | M |
| Carter | Chouteau | M |
| Cascade | Cascade | M |
| Charlo | Lake | M |
| Chester | Liberty | M |
| Chinook | Blaine | M |
| Choteau | Teton | M |
| Circle | McCone | M |
| Clancy | Jefferson | M |
| Clinton | Missoula | M |
| Clyde Park | Park | M |
| Coffee Creek | Fergus | M |
| Cohagen | Garfield | M |
| Colstrip | Rosebud | M |
| Columbia Falls | Flathead | M |
| Columbus | Stillwater | M |
| Condon | Missoula | M |
| Conner | Ravalli | M |
| Conrad | Pondera | M |
| Cooke City | Park | M |
| Coram | Flathead | M |
| Corvallis | Ravalli | M |
| Crane | Richland | M |
| Crow Agency | Big Horn | M |
| Culbertson | Roosevelt | M |
| Custer | Yellowstone | M |
| Cut Bank | Glacier | M |
| Dagmar | Sheridan | M |
| Darby | Ravalli | M |
| Dayton | Lake | M |
| De Borgia | Mineral | M |
| Decker | Big Horn | M |
| Deer Lodge | Powell | M |
| Dell | Beaverhead | M |
| Denton | Fergus | M |
| Dillon | Beaverhead | M |
| Divide | Silver Bow | M |
| Dixon | Sanders | M |
| Dodson | Phillips | M |
| Drummond | Granite | M |
| Dupuyer | Pondera | M |
| Dutton | Teton | M |
| East Glacier Park | Glacier | M |
| East Helena | Lewis And Clark | M |
| Edgar | Carbon | M |
| Ekalaka | Carter | M |
| Elliston | Powell | M |
| Elmo | Lake | M |
| Emigrant | Park | M |
| Ennis | Madison | M |
| Essex | Flathead | M |
| Ethridge | Toole | M |
| Eureka | Lincoln | M |
| Fairfield | Teton | M |
| Fairview | Richland | M |
| Fallon | Prairie | M |
| Fishtail | Stillwater | M |
| Flaxville | Daniels | M |
| Florence | Ravalli | M |
| Floweree | Chouteau | M |
| Forestgrove | Fergus | M |
| Forsyth | Rosebud | M |
| Fort Benton | Chouteau | M |
| Fort Harrison | Lewis And Clark | M |
| Fort Peck | Valley | M |
| Fort Shaw | Cascade | M |
| Fortune | Lincoln | M |
| Frazer | Valley | M |
| Frenchtown | Missoula | M |
| Froid | Roosevelt | M |
| Fromberg | Carbon | M |
| Galata | Toole | M |
| Gallatin Gateway | Gallatin | M |
| Gardiner | Park | M |
| Garrison | Powell | M |
| Garryowen | Big Horn | M |
| Geraldine | Chouteau | M |
| Geyser | Judith Basin | M |
| Gildford | Hill | M |
| Glasgow | Valley | M |
| Glen | Beaverhead | M |
| Glendive | Dawson | M |
| Glentana | Valley | M |
| Gold Creek | Powell | M |
| Grantsdale | Ravalli | M |
| Grass Range | Fergus | M |
| Great Falls | Cascade | M |
| Greycliff | Sweet Grass | M |
| Hall | Granite | M |
| Hamilton | Ravalli | M |
| Hammond | Carter | M |
| Hardin | Big Horn | M |
| Harlem | Blaine | M |
| Harlowton | Wheatland | M |
| Harrison | Madison | M |
| Hathaway | Rosebud | M |
| Haugan | Mineral | M |
| Havre | Hill | M |
| Hays | Blaine | M |
| Heart Butte | Pondera | M |
| Helena | Lewis And Clark | M |
| Helmville | Powell | M |
| Heron | Sanders | M |
| Highwood | Chouteau | M |
| Hilger | Fergus | M |
| Hingham | Hill | M |
| Hinsdale | Valley | M |
| Hobson | Judith Basin | M |
| Hogeland | Blaine | M |
| Homestead | Sheridan | M |
| Hot Springs | Sanders | M |
| Hungry Horse | Flathead | M |
| Huntley | Yellowstone | M |
| Huson | Missoula | M |
| Hysham | Treasure | M |
| Ingomar | Rosebud | M |
| Inverness | Hill | M |
| Ismay | Custer | M |
| Jackson | Beaverhead | M |
| Jefferson City | Jefferson | M |
| Joliet | Carbon | M |
| Joplin | Liberty | M |
| Jordan | Garfield | M |
| Judith Gap | Wheatland | M |
| Kalispell | Flathead | M |
| Kevin | Toole | M |
| Kila | Flathead | M |
| Kinsey | Custer | M |
| Kremlin | Hill | M |
| Lake Mc Donald | Flathead | M |
| Lakeside | Flathead | M |
| Lambert | Richland | M |
| Lame Deer | Rosebud | M |
| Larslan | Valley | M |
| Laurel | Yellowstone | M |
| Lavina | Golden Valley | M |
| Ledger | Pondera | M |
| Lewistown | Fergus | M |
| Libby | Lincoln | M |
| Lima | Beaverhead | M |
| Lincoln | Lewis And Clark | M |
| Lindsay | Dawson | M |
| Livingston | Park | M |
| Lloyd | Blaine | M |
| Lodge Grass | Big Horn | M |
| Lolo | Missoula | M |
| Loma | Chouteau | M |
| Lonepine | Sanders | M |
| Loring | Phillips | M |
| Lothair | Liberty | M |
| Malmstrom Afb | Cascade | M |
| Malta | Phillips | M |
| Manhattan | Gallatin | M |
| Marion | Flathead | M |
| Martin City | Flathead | M |
| Martinsdale | Meagher | M |
| Marysville | Lewis And Clark | M |
| Mc Allister | Madison | M |
| Mc Leod | Sweet Grass | M |
| Medicine Lake | Sheridan | M |
| Melrose | Silver Bow | M |
| Melstone | Musselshell | M |
| Melville | Sweet Grass | M |
| Mildred | Prairie | M |
| Miles City | Custer | M |
| Milltown | Missoula | M |
| Missoula | Missoula | M |
| Moccasin | Judith Basin | M |
| Molt | Yellowstone | M |
| Monarch | Cascade | M |
| Moore | Fergus | M |
| Mosby | Garfield | M |
| Musselshell | Musselshell | M |
| Nashua | Valley | M |
| Neihart | Cascade | M |
| Norris | Madison | M |
| Noxon | Sanders | M |
| Nye | Stillwater | M |
| Oilmont | Toole | M |
| Olive | Powder River | M |
| Olney | Flathead | M |
| Opheim | Valley | M |
| Otter | Powder River | M |
| Outlook | Sheridan | M |
| Ovando | Powell | M |
| Pablo | Lake | M |
| Paradise | Sanders | M |
| Park City | Stillwater | M |
| Peerless | Daniels | M |
| Pendroy | Teton | M |
| Philipsburg | Granite | M |
| Pinesdale | Ravalli | M |
| Plains | Sanders | M |
| Plentywood | Sheridan | M |
| Plevna | Fallon | M |
| Polaris | Beaverhead | M |
| Polebridge | Flathead | M |
| Polson | Lake | M |
| Pompey Pillar | Yellowstone | M |
| Pony | Madison | M |
| Poplar | Roosevelt | M |
| Powderville | Powder River | M |
| Power | Teton | M |
| Pray | Park | M |
| Proctor | Lake | M |
| Pryor | Big Horn | M |
| Radersburg | Broadwater | M |
| Ramsay | Silver Bow | M |
| Rapelje | Stillwater | M |
| Ravalli | Lake | M |
| Raymond | Sheridan | M |
| Raynesford | Judith Basin | M |
| Red Lodge | Carbon | M |
| Redstone | Sheridan | M |
| Reed Point | Stillwater | M |
| Reserve | Sheridan | M |
| Rexford | Lincoln | M |
| Richey | Dawson | M |
| Richland | Valley | M |
| Ringling | Meagher | M |
| Roberts | Carbon | M |
| Rollins | Lake | M |
| Ronan | Lake | M |
| Roscoe | Carbon | M |
| Rosebud | Rosebud | M |
| Roundup | Musselshell | M |
| Roy | Fergus | M |
| Rudyard | Hill | M |
| Ryegate | Golden Valley | M |
| Saco | Phillips | M |
| Saltese | Mineral | M |
| Sand Coulee | Cascade | M |
| Sand Springs | Garfield | M |
| Sanders | Treasure | M |
| Savage | Richland | M |
| Scobey | Daniels | M |
| Seeley Lake | Missoula | M |
| Shawmut | Wheatland | M |
| Shelby | Toole | M |
| Shepherd | Yellowstone | M |
| Sheridan | Madison | M |
| Sidney | Richland | M |
| Silver Gate | Park | M |
| Silver Star | Madison | M |
| Simms | Cascade | M |
| Somers | Flathead | M |
| Springdale | Park | M |
| St Ignatius | Lake | M |
| St Marie | Valley | M |
| St Regis | Mineral | M |
| St Xavier | Big Horn | M |
| Stanford | Judith Basin | M |
| Stevensville | Ravalli | M |
| Stockett | Cascade | M |
| Stryker | Lincoln | M |
| Sula | Ravalli | M |
| Sumatra | Rosebud | M |
| Sun River | Cascade | M |
| Sunburst | Toole | M |
| Superior | Mineral | M |
| Sweet Grass | Toole | M |
| Teigen | Petroleum | M |
| Terry | Prairie | M |
| Thompson Falls | Sanders | M |
| Three Forks | Gallatin | M |
| Toston | Broadwater | M |
| Townsend | Broadwater | M |
| Trego | Lincoln | M |
| Trout Creek | Sanders | M |
| Troy | Lincoln | M |
| Turner | Blaine | M |
| Twin Bridges | Madison | M |
| Two Dot | Wheatland | M |
| Ulm | Cascade | M |
| Valier | Pondera | M |
| Vandalia | Valley | M |
| Vaughn | Cascade | M |
| Victor | Ravalli | M |
| Vida | McCone | M |
| Virginia City | Madison | M |
| Volborg | Custer | M |
| Warm Springs | Deer Lodge | M |
| West Glacier | Flathead | M |
| West Yellowstone | Gallatin | M |
| Westby | Sheridan | M |
| White Sulphur Springs | Meagher | M |
| Whitefish | Flathead | M |
| Whitehall | Jefferson | M |
| Whitetail | Daniels | M |
| Whitewater | Phillips | M |
| Whitlash | Liberty | M |
| Wibaux | Wibaux | M |
| Willard | Fallon | M |
| Willow Creek | Gallatin | M |
| Walsall | Park | M |
| Winifred | Fergus | M |
| Winnett | Petroleum | M |
| Winston | Broadwater | M |
| Wisdom | Beaverhead | M |
| Wise River | Beaverhead | M |
| Wolf Creek | Lewis And Clark | M |
| Wolf Point | Roosevelt | M |
| Worden | Yellowstone | M |
| Wyola | Big Horn | M |
| Yellowtail | Big Horn | M |
| Zortman | Phillips | M |
| Zurich | Blaine | M |
- The table above indicates the most common, but not always all, places served by area code 406. When there is more than one place with the same name in the same state, we list the one where the most people live. Those with a population of more than 50,000 are highlighted.
- Mountain Time (currently 01:39:35 PM) stands for Mountain Time.