Phone numbers in Carlsbad, New Mexico
Carlsbad has 19 phone prefixes in area code 575.
Biggest holders: Windstream Comm Sw, Verizon Wireless, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 53%
- Local phone company 32%
- Internet / business phone carrier 5%
- Phone company 11%
Every prefix in Carlsbad
Search the first six digits of a number in this list. If it's here, the number started in Carlsbad with the carrier shown. If it isn't, check the New Mexico page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 575-200 | Verizon Wireless | Mobile carrier | 2004 |
| 575-234 | Windstream Comm Sw | Local phone company | – |
| 575-236 | Windstream Comm Sw | Local phone company | – |
| 575-237 | Onvoy | Internet / business phone carrier | 2019 |
| 575-266 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 575-302 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 575-307 | AT&T Mobility | Mobile carrier | 2023 |
| 575-341 | Verizon Wireless | Mobile carrier | 2025 |
| 575-361 | Verizon Wireless | Mobile carrier | 2013 |
| 575-499 | Mescalero Apache Telecom | Phone company | 2005 |
| 575-628 | Windstream Comm Sw | Local phone company | – |
| 575-689 | T-Mobile (including Sprint) | Mobile carrier | 2011 |
| 575-706 | AT&T Mobility | Mobile carrier | 2002 |
| 575-725 | AT&T Mobility | Mobile carrier | 2008 |
| 575-817 | Leaco | Local phone company | – |
| 575-885 | Windstream Comm Sw | Local phone company | – |
| 575-887 | Windstream Comm Sw | Local phone company | – |
| 575-941 | Pvt Networks | Phone company | 2008 |
| 575-988 | Verizon Wireless | Mobile carrier | 2018 |
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.