West region · Mountain Time
New Mexico Area Codes
All 2 area codes serving New Mexico, the cities each one covers, and which are overlays. New Mexico is served by 2 area codes in the Mountain Time zone.
Last updated June 5, 2026
Full list
Every New Mexico area code
New Mexico is served by 2 area codes in the Mountain Time zone. It is a single-code state, so seven-digit local dialing may still work in many places.
| Code | Main city | Type | Status |
|---|---|---|---|
| 505 | Albuquerque | Geographic | In service |
| 575 | Las Cruces | Geographic | In service |
Area codes and dialing in New Mexico
New Mexico's 2 area codes mix older geographic codes with newer overlays. The busiest metros — around Albuquerque, Las Cruces — carry the most numbers and rely on overlays, which is why dialing rules vary by area. Quieter parts of the state may still use a single code. The original code in the New Mexico list is 505 (Albuquerque).
Whenever a New Mexico region runs low on numbers, a new overlay is added on top rather than splitting the map, so existing customers keep their numbers. See 10-digit dialing for what that means in practice, or the newest area codes for upcoming changes.
Browse New Mexico another way
Explore by West region, by time zone, or jump to the city index. You can also see the complete numeric list of every US area code.
Quick answers
New Mexico area code FAQ
How many area codes does New Mexico have?
New Mexico currently has 2 area codes: 505, 575.
What is the main area code for New Mexico?
The busiest metro in New Mexico is served by the 505 code. Major cities include Albuquerque, Las Cruces.
Does New Mexico require 10-digit dialing?
Much of the state still permits 7-digit local calls, though 10-digit dialing always works. Ten-digit dialing is the national standard.