Phone numbers in Missoula, Montana
Missoula has 47 phone prefixes in area code 406.
Biggest holders: CenturyLink / Lumen, Verizon Wireless, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 34%
- Local phone company 28%
- Internet / business phone carrier 28%
- Phone company 11%
Every prefix in Missoula
Search the first six digits of a number in this list. If it's here, the number started in Missoula with the carrier shown. If it isn't, check the Montana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 406-203 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 406-207 | AT&T Mobility | Mobile carrier | 2001 |
| 406-214 | Verizon Wireless | Mobile carrier | – |
| 406-215 | Skyetel | Internet / business phone carrier | – |
| 406-218 | T-Mobile (including Sprint) | Mobile carrier | 2004 |
| 406-239 | AT&T Mobility | Mobile carrier | – |
| 406-240 | AT&T Mobility | Mobile carrier | – |
| 406-241 | AT&T Mobility | Mobile carrier | – |
| 406-243 | CenturyLink / Lumen | Local phone company | – |
| 406-251 | CenturyLink / Lumen | Local phone company | – |
| 406-258 | CenturyLink / Lumen | Local phone company | – |
| 406-273 | CenturyLink / Lumen | Local phone company | – |
| 406-274 | Teleport Communications America Mt | Internet / business phone carrier | – |
| 406-303 | Teleport Communications America Mt | Internet / business phone carrier | 2012 |
| 406-304 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 406-317 | Telnyx | Internet / business phone carrier | – |
| 406-327 | CenturyLink / Lumen | Local phone company | – |
| 406-329 | CenturyLink / Lumen | Local phone company | – |
| 406-370 | Verizon Wireless | Mobile carrier | – |
| 406-396 | Verizon Wireless | Mobile carrier | 2003 |
| 406-406 | Livewire Telecom | Phone company | 2024 |
| 406-481 | Verizon Wireless | Mobile carrier | 2023 |
| 406-493 | Charter / Spectrum | Internet / business phone carrier | – |
| 406-509 | Exiant Communications | Phone company | 2026 |
| 406-510 | Onvoy | Internet / business phone carrier | 2017 |
| 406-519 | IP Horizon | Internet / business phone carrier | – |
| 406-523 | CenturyLink / Lumen | Local phone company | – |
| 406-529 | Verizon Wireless | Mobile carrier | 2005 |
| 406-531 | Verizon Wireless | Mobile carrier | – |
| 406-532 | Blackfoot Communications | Phone company | – |
| 406-540 | Onvoy | Internet / business phone carrier | – |
| 406-541 | Blackfoot Communications | Phone company | – |
| 406-542 | CenturyLink / Lumen | Local phone company | – |
| 406-543 | CenturyLink / Lumen | Local phone company | – |
| 406-544 | Verizon Wireless | Mobile carrier | – |
| 406-546 | Verizon Wireless | Mobile carrier | – |
| 406-549 | CenturyLink / Lumen | Local phone company | – |
| 406-550 | Nuso | Internet / business phone carrier | – |
| 406-552 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 406-610 | AT&T Mobility | Mobile carrier | 2025 |
| 406-618 | TDS Metrocom | Phone company | 2025 |
| 406-721 | CenturyLink / Lumen | Local phone company | – |
| 406-728 | CenturyLink / Lumen | Local phone company | – |
| 406-829 | CenturyLink / Lumen | Local phone company | – |
| 406-830 | Charter / Spectrum | Internet / business phone carrier | 2007 |
| 406-880 | Verizon Wireless | Mobile carrier | – |
| 406-926 | Charter / Spectrum | Internet / business phone carrier | 2011 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.