505 area code — Albuquerque, NM geographic

Data: NANPA public reports, current as of July 28, 2026.

505 is the area code for Albuquerque, New Mexico, in service since January 1, 1947, Mountain time. Because of number portability and VoIP, the area code tells you where the number was issued, not where the caller is right now.

NANPA lists 682 active NXX prefixes in 505, assigned to 46 carriers. 445 of those prefixes are pooled — shared between carriers in thousands-number blocks. The code spans 34 rate centers (billing localities).

To check where a specific 505 number was issued, look up its six-digit prefix; to check who is actually calling, ignore the display and verify through an official callback number — caller ID is assertable and routinely spoofed.

Among New Mexico codes, 505 stands out as the oldest area code in New Mexico, in service since 1947.

The dialing plan is 10D for home-NPA local calls and 10D across codes.

Official projections put exhaust at 3Q 2031 — relief planning typically starts years ahead.

Later relief produced 575 (2007) from its territory.

Largest localities in 505

FAQ

Is 505 a toll-free number?

No. 505 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.

Will 505 run out of numbers?

NANPA's current forecast projects exhaust in 3Q 2031, so a new overlay is likely to be planned.

Why am I getting spam calls from 505 numbers?

Scammers spoof recognizable area codes so calls look local or familiar. A displayed 505 number does not prove the call originated there — see our guide to spotting spoofed calls.

Where is a 505 number from?

505 is assigned to Albuquerque and surrounding areas of New Mexico in the Mountain time zone. The three digits after the area code (the prefix) narrow it down to a rate center.