NumberingData
Methodology Download the data
Area code Verified Nov 1, 2026 · Source: NANPA

Area code 505 – New Mexico

505 is one of the original area codes, in service across New Mexico since 1947. 685 of its 786 number blocks are allocated (87%). No carrier dominates: Lumen / CenturyLink 32.6%, Verizon 15.2%, AT&T 12.1%. FTC complaints naming a 505 caller ID totalled 584 in the 33 days to 30 October 2026 (176th of 422 ranked codes).

State
New Mexico
In service since
1947
Time zone
Mountain
Shares area with
No overlay

Who holds 505 number blocks

Share of the 685 assigned NXX blocks (87.2% of the 786 possible), across 47 carriers. This is share of number blocks, not of subscribers.

  • Lumen32.6%
  • Verizon15.2%
  • T-Mobile12.3%
  • AT&T12.1%
  • Other CLEC / VoIP9.8%
  • Onvoy7.9%
  • Bandwidth3.5%
  • Windstream1.9%
  • Comcast1.5%
  • Spok0.7%
  • Charter0.7%
  • Peerless0.6%
  • Telnyx0.4%
  • Dish0.3%
  • Vonage0.3%
  • Twilio0.1%
  • TPx0.1%

Spam complaints naming 505

FTC Do Not Call complaints where the caller ID was a 505 number, 28 Sep – 30 Oct 2026 (33 days). Caller IDs on spam calls are frequently spoofed, so these are complaints about the code, not calls proven to originate in it.

584 complaints in 33 days
#176 of 422 ranked codes

Rate centers in 505

NANPA allocates number blocks to rate centers and records their names abbreviated to ten characters, so these are NANPA's codes rather than place names – CHAMPAURBN is Champaign-Urbana, NWYRCYZN01 is a New York City zone. We show them unchanged instead of guessing at the full names. Showing the largest 5 of 34.

ALBUQURQUE375
SANTA FE68
FARMINGTON68
GALLUP35
AZTEC20

Timeline

  1. 1947 505 assigned in the original North American Numbering Plan.

More about 505

Separate pages for the questions that need their own answer: what time it is there, what the complaint data says, who holds the number blocks, and how the code compares with the one it shares its area with.

All prefixes Every one of the 685 assigned NXX blocks, with the holder of each Local time Zone, UTC offset, clock changes and a live clock Spam complaints How often the code appears in FTC complaints, and what to do Carriers Who holds the number blocks, and why that is not who serves them

Frequently asked about 505

What state is area code 505?

New Mexico.

Is a call from 505 a scam?

Not by itself. 505 drew 584 FTC complaints in the 33 days to 30 October 2026, 176th of 422 ranked codes – mid-pack or lower. Spam callers spoof caller IDs, so the only useful check is the full number.

Which carrier owns 505 numbers?

Lumen / CenturyLink holds the largest share of assigned number blocks at 32.6%. The rest is spread across 3 other carriers. This is share of number blocks, not of subscribers – people keep their numbers when they switch carriers.

Do I need to dial 10 digits in 505?

Yes – ten digits for local calls in 505, because it shares its area with another code.

Sources and verification

NANPA dialing note for this code: “10D”. Reviewed by the data desk. Spotted an error? Request a correction.