State directory / New Mexico
US number directory / New Mexico
New Mexico
area codes
New Mexico's numbering history in this register starts with 505 in 1947, within a current total of 2 geographic codes.
2geographic area codes
in this reference
in this reference
Earliest listed505 · 1947
Standard timeMT
Overlays in this stateNone recorded in this snapshot
Major city starting points
Santa Fe (capital): 505; Albuquerque (largest city in state reference): 505, 575.
| City | Reference role | Codes to check |
|---|---|---|
| Santa Fe | Capital | 505 |
| Albuquerque | Largest city in state reference | 505, 575 |
City reference · 2026-10-25
Codes, cities & coverage
NANPA lists no active overlay complex for New Mexico on 2026-10-25.
| Code | Region / major cities named in the reference | Introduced | Active overlay complexes |
|---|---|---|---|
| 505 | New Mexico ( Albuquerque , Santa Fe , Farmington, Gallup, all of northwestern New Mexico, and a part of central New Mexico) | 01-Jan-1947 | None active in NANPA snapshot |
| 575 | New Mexico ( Las Cruces , Roswell , Carlsbad Caverns National Park , Socorro , Taos , and Truth or Consequences ; excludes central ( Albuquerque and its suburbs) and northwestern New Mexico) | 07-Oct-2007 | None active in NANPA snapshot |
NANPA dates & overlays · 2026-10-25
Wikipedia geography · 2026-10-25 · CC BY-SA 4.0
Time zones
New Mexico spans 1 standard-time offset in the state reference: MT.
| Standard offset | Region | Daylight saving |
|---|---|---|
| UTC−07:00 MT | Mountain | Yes |