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Area code Verified Nov 1, 2026 · Source: NANPA

Area code 515 – Iowa

515 is one of the original area codes, in service across Iowa since 1947. 578 of its 786 number blocks are allocated (74%). No carrier dominates: Lumen / CenturyLink 27.3%, Other CLEC / VoIP 23.5%, Verizon 10.0%. 859 FTC complaints named a 515 caller ID in the 33 days to 30 October 2026, putting it 76th of 422 codes with five or more complaints.

State
Iowa
In service since
1947
Time zone
Central
Shares area with
No overlay

Who holds 515 number blocks

Share of the 578 assigned NXX blocks (73.5% of the 786 possible), across 72 carriers. This is share of number blocks, not of subscribers.

  • Other CLEC / VoIP30.3%
  • Lumen27.3%
  • Verizon10%
  • T-Mobile9.2%
  • Windstream7.3%
  • AT&T4.8%
  • Onvoy4.7%
  • Bandwidth3.6%
  • Charter1%
  • Frontier0.9%
  • Comcast0.2%
  • Telnyx0.2%
  • Vonage0.2%
  • Twilio0.2%
  • Dish0.2%

Spam complaints naming 515

FTC Do Not Call complaints where the caller ID was a 515 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.

859 complaints in 33 days
#76 of 422 ranked codes

Rate centers in 515

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 98.

DES MOINES257
AMES39
WINTERSET17
FORT DODGE14
BOONE13

Timeline

  1. 1947 515 assigned in the original North American Numbering Plan.

More about 515

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 578 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 515

What state is area code 515?

Iowa.

Is a call from 515 a scam?

Not by itself. 515 drew 859 FTC complaints in the 33 days to 30 October 2026, 76th 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 515 numbers?

Lumen / CenturyLink holds the largest share of assigned number blocks at 27.3%. 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 515?

Yes – ten digits for local calls in 515, 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.