Phone numbers in Alamogordo, New Mexico
Alamogordo has 31 phone prefixes in area code 575.
Biggest holders: CenturyLink / Lumen, Verizon Wireless, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 42%
- Local phone company 29%
- Internet / business phone carrier 23%
- Phone company 6%
Every prefix in Alamogordo
Search the first six digits of a number in this list. If it's here, the number started in Alamogordo with the carrier shown. If it isn't, check the New Mexico page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 575-213 | Onvoy | Internet / business phone carrier | 2019 |
| 575-214 | Verizon Wireless | Mobile carrier | 2015 |
| 575-227 | Onvoy | Internet / business phone carrier | 2009 |
| 575-285 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 575-286 | Bandwidth | Internet / business phone carrier | 2022 |
| 575-290 | AT&T Mobility | Mobile carrier | 2022 |
| 575-295 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 575-314 | Verizon Wireless | Mobile carrier | 2023 |
| 575-324 | Onvoy | Internet / business phone carrier | 2024 |
| 575-348 | TDS Broadband Service | Internet / business phone carrier | 2025 |
| 575-404 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 575-415 | Verizon Wireless | Mobile carrier | 2007 |
| 575-430 | Verizon Wireless | Mobile carrier | – |
| 575-434 | CenturyLink / Lumen | Local phone company | – |
| 575-437 | CenturyLink / Lumen | Local phone company | – |
| 575-439 | CenturyLink / Lumen | Local phone company | – |
| 575-442 | T-Mobile (including Sprint) | Mobile carrier | – |
| 575-443 | CenturyLink / Lumen | Local phone company | – |
| 575-446 | CenturyLink / Lumen | Local phone company | – |
| 575-475 | CenturyLink / Lumen | Local phone company | – |
| 575-479 | CenturyLink / Lumen | Local phone company | – |
| 575-488 | Tularosa Communications | Phone company | 2011 |
| 575-489 | MetroPCS (T-Mobile) | Mobile carrier | 2014 |
| 575-491 | Verizon Wireless | Mobile carrier | – |
| 575-495 | T-Mobile (including Sprint) | Mobile carrier | – |
| 575-551 | AT&T Mobility | Mobile carrier | 2004 |
| 575-554 | Onvoy | Internet / business phone carrier | 2021 |
| 575-572 | CenturyLink / Lumen | Local phone company | – |
| 575-812 | Mescalero Apache Telecom | Phone company | 2005 |
| 575-837 | TON80 Communications | Internet / business phone carrier | 2021 |
| 575-921 | CenturyLink / Lumen | Local phone company | – |
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.