US numbering directory
New Mexico Area Codes
Compare 2 in-service area codes assigned to New Mexico. Explore each code’s introduction date, overlays, possible time zones, and public prefix records.
New Mexico numbering at a glance
- In-service area codes
- 2
- Time-zone labels in NANPA data
- Mountain
- Listed in-service or assigned prefixes
- 1,204 · source dated 2026-09-29
These are numbering assignments. The counts do not represent active phone numbers, current carriers, or a caller’s physical location.
Compare area codes in New Mexico
| Code | Introduced | Other codes in overlay | Time zones | Listed prefixes |
|---|---|---|---|---|
| 505 | 01-Jan-1947 | None listed | Mountain | 683 |
| 575 | 07-Oct-2007 | None listed | Mountain | 521 |
Source: NANPA NPA database, dated 2026-09-28. Prefix counts: NANPA US assignment report. View official area-code maps.
Find a number in New Mexico
Open an area-code page above to check a prefix and possible time zones. You can also search US telephone rate-center names; those names are not exact city coverage.
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