New Mexico · Mountain Time
575 Area Code
The 575 area code is a telephone area code in New Mexico, covering Las Cruces and the surrounding area. It lies in the Mountain Time zone.
Last updated June 5, 2026
Where is the 575 area code?
575 serves Las Cruces and nearby communities in New Mexico. In the wider directory it sits in the West region.
Dialing 575
Las Cruces is currently served by the single area code 575. Ten-digit dialing (area code + seven-digit number) always works and is increasingly the norm nationwide; some local calls may still connect with seven digits. If a future overlay is added, 10-digit dialing would become mandatory.
History of the 575 area code
575 is a geographic area code serving Las Cruces and the surrounding part of New Mexico. It was added after the original 1947 plan as telephone demand grew. For how codes are created, split, and overlaid, see how area codes work.
Is 575 a scam or spam risk?
575 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 575 number on your screen is no guarantee the caller is local or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Explore more
See every code in New Mexico, compare codes across the West region, or view all Mountain Time codes. You can also browse the 5XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
575 area code FAQ
Where is the 575 area code?
The 575 area code is in New Mexico, serving Las Cruces and the surrounding area in the West region.
What time zone is 575 in?
575 is in the Mountain Time zone.
Do I have to dial 10 digits for 575?
Ten-digit dialing always works, and many areas now require it; some local calls in this area may still connect with seven digits.
Is 575 a toll-free or premium code?
No. 575 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.