The 575 area code covers Las Cruces, Alamogordo and 98 more places in New Mexico.
Area code 575 is in New Mexico, on Mountain Time. In the 575 area, phone numbers are given out most in Doña Ana County, then Otero and Lea counties. It has been in service since October 7, 2007.
- Where
- 8 counties in New Mexico, mostly Doña Ana County, Otero County and Lea County
- Time zone
- Mountain Time
- In service since
- October 7, 2007
- Shares its area with
- No other area code
- Prefixes in use
- 521
- How to dial
- Local calls need all 10 digits: 575-555-0142.
Find out who called you from a 575 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (575) number is on today, use our free carrier lookup.
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Las Cruces holds 12% of the phone prefixes in area code 575.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 521 prefixes in use shows where 575 numbers are actually given out.
- Las Cruces61 prefixes, 12%
- Alamogordo31 prefixes, 6%
- Roswell28 prefixes, 5%
- Hobbs28 prefixes, 5%
- Clovis22 prefixes, 4%
- Carlsbad19 prefixes, 4%
- Silver City15 prefixes, 3%
- Taos14 prefixes, 3%
Also served: Artesia, Ruidoso, Deming and Cannon Afb and 88 smaller places.
Qwest (Lumen) holds the most phone number prefixes in area code 575: 77 of 521.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 521 prefixes in use in 575 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| Qwest (Lumen)Lumen's landline company | 77 | 15% |
| AT&T MobilityMobile network | 49 | 9% |
| WindstreamLandline company | 44 | 8% |
| T-MobileMobile network | 37 | 7% |
| E.N.M.R. Telephone Cooperative | 24 | 5% |
| BandwidthSupplies numbers to VoIP and app-based phone services | 23 | 4% |
| 40 other carriers | 267 | 51% |
63% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
575 has covered the same ground since 2007.
2007
575 starts on October 7, 2007, split off from 505.
A 575 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 575 are 505, 915 and 806.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
These are the questions people ask most about area code 575.
Where is area code 575?
575 covers Las Cruces, Alamogordo, Roswell and Hobbs and 96 more places in New Mexico. In the 575 area, phone numbers are given out most in Doña Ana County, then Otero and Lea counties.
What state is area code 575 in?
New Mexico. 575 is a New Mexico area code on Mountain Time.
What cities use area code 575?
The places holding the most 575 prefixes are Las Cruces, Alamogordo, Roswell, Hobbs, Clovis, Carlsbad, Silver City and Taos, out of 100 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 575?
No single phone company owns 575. NANPA's records show Qwest (Lumen) holds the most 575 prefixes, 77 of 521, followed by AT&T Mobility and Windstream. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 575 in?
575 is on Mountain Time.
When did area code 575 start?
575 went into service on October 7, 2007, when it was split off from 505.
How do I dial a 575 number?
Local calls need all 10 digits: 575-555-0142.
Is 575 a toll-free number?
No. 575 is a regular area code for Las Cruces and Alamogordo in New Mexico, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 575?
The closest are 505 (Albuquerque, New Mexico), 915 (El Paso, Texas) and 806 (Lubbock, Texas), measured between the centres of each area.
Who called me from a 575 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 575 a scam?
575 is a real New Mexico area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.