Las Cruces

Area code 575 serves southern and eastern New Mexico, including Las Cruces, Roswell, Carlsbad and Alamogordo. It split from 505 in 2007 and is noted as the last U.S. area code introduced by a geographic split.

The essentials Numbering data · NumberResearch · as of 2026-09-18

Place

Las Cruces

Type

geographic

Status

in service

In service since

2007

Projected exhaust

2051 Q3

Status, dates and counts are read from NumberResearch (NANPA / CNAC / FCC records). Assignment records show initial assignees, not the carrier serving a number today.

A · Where it is

Where 575 is

Southern and eastern New Mexico..

Communities served wholly or partly by 575:

Las CrucesRoswellCarlsbadAlamogordoHobbs

B · Relationships

How it relates to other codes

The codes 575 was split from, spawned, or shares its area with. A split divides the map and changes some numbers; an overlay shares the same ground and changes none — what's the difference?

Split from · 2007 505 Albuquerque 575 was split from 505 on 2007-10-07; 505 kept the northwest/central region.

What's changing. Single code, no overlay.

C · History

How 575 got here

2007-10-07

Created by a split from area code 505; the last U.S. area code introduced by a split.

Source: Wikipedia

D · Capacity

How full it is

Prefixes assigned

535

Prefixes available

265

Thousands-blocks assigned

2,167

Prefix-assignment counts describe allocation to carriers, not how many individual numbers are in use. Full technical records: NumberResearch ↗.

Compare 575 with another code →

Sources

Wikipedia ↗

Area code 575

NumberResearch.org ↗

Live status, dates, assignment counts and exhaust forecast — data as of 2026-09-18 (CC BY 4.0).

Place, relationships and history above are compiled by North American Numbers from the sources listed and last checked 2026-09-18. A check date is not an expert review — see how this is made. Flag an error.