Area code 505: where it is and who calls from it
Area code 505 is in New Mexico.
New Mexico (Albuquerque, Santa Fe, Farmington, Gallup, all of northwestern New Mexico, and a part of central New Mexico)
| Where | New Mexico |
|---|---|
| Time zone | Mountain Time ยท local time |
| In service since | 1947 |
| Overlay | No |
| Prefixes assigned | 684 of 792 possible (86%) |
Where 505 numbers started
Every prefix is assigned to a rate center, the local calling area it was set up in. These are the biggest in 505, with how many prefixes each has.
Who holds 505 numbers
- Mobile carrier 40%
- Local phone company 30%
- Internet / business phone carrier 25%
- Paging service 1%
- Phone company 5%
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| CenturyLink / Lumen | Local phone company | 192 | 28% |
| Verizon Wireless | Mobile carrier | 98 | 14% |
| AT&T Mobility | Mobile carrier | 77 | 11% |
| T-Mobile (including Sprint) | Mobile carrier | 65 | 10% |
| Onvoy | Internet / business phone carrier | 59 | 9% |
| Level 3 (Lumen) | Internet / business phone carrier | 31 | 5% |
| Bandwidth | Internet / business phone carrier | 24 | 4% |
| MetroPCS (T-Mobile) | Mobile carrier | 19 | 3% |
| Navajo Comm Co Nm | Phone company | 13 | 2% |
| Comcast | Internet / business phone carrier | 10 | 1% |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number.
States served: New Mexico.
Other area codes in New Mexico
Got a call from 505?
An area code tells you where a number was first assigned, not where the caller is. People keep their numbers when they move, and scammers can fake any number. If you weren't expecting the call, let it go to voicemail.
If the call shows a 505 number that matches the first six digits of your own, that's often neighbor spoofing. Use the box above to check the full number.
Area code facts from the NANPA area code database (updated 10/06/2026); prefixes and carriers from NANPA's central office code records (updated 2026-10-10). Place description adapted from Wikipedia, CC BY-SA 4.0.