New Mexico Area Codes: Complete List With Cities Served

New Mexico is served by 2 area codes. Several of them are overlays, which means two or more codes share the same territory.

New Mexico area code list

Area codeMain places served
505Albuquerque, Santa Fe, Rio Rancho and Gallup
575Las Cruces, Hobbs, Roswell and Alamogordo

Place names come from ZIP code records linked to each area code, so they show where a code is most common rather than exact boundaries.

Area codes by major city

How to format a New Mexico phone number

US numbers have ten digits: the area code, a three-digit exchange and a four-digit line number. A New Mexico number is written as (505) 555-0123 for display, or +15055550123 in E.164 format for storage.

Safe numbers for testing

The range 555-0100 to 555-0199 is reserved for fictional use in every area code. Our generator combines these with real local area codes, so test data looks right without reaching a real person.

Why overlays matter for your forms

With overlays, you cannot guess a city from its area code alone, and people who move keep their numbers. Use area codes for display and formatting, not for location checks.

Create realistic New Mexico addresses for testing, with real cities, counties and ZIP codes.

Generate New Mexico addresses