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Area code Verified Nov 1, 2026 · Source: NANPA

Area code 612 – Minnesota

612 is one of the original area codes, in service across Minnesota since 1947. 590 of its 786 number blocks are allocated (75%). No carrier dominates: Lumen / CenturyLink 28.0%, Other CLEC / VoIP 24.6%, Verizon 20.0%. Spam complaints are comparatively rare: 356 in the 33 days to 30 October 2026, 275th of the 422 codes with five or more complaints.

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

Who holds 612 number blocks

Share of the 590 assigned NXX blocks (75.1% of the 786 possible), across 38 carriers. This is share of number blocks, not of subscribers.

  • Lumen28%
  • Verizon20%
  • T-Mobile16.9%
  • AT&T13.9%
  • Onvoy4.6%
  • American Messaging3.1%
  • Other CLEC / VoIP2.9%
  • Bandwidth2.7%
  • Spok2%
  • Allstream1.4%
  • Peerless1.2%
  • Windstream1.2%
  • Comcast0.7%
  • Charter0.7%
  • Vonage0.3%
  • Dish0.2%
  • 8x80.2%
  • Twilio0.2%

Spam complaints naming 612

FTC Do Not Call complaints where the caller ID was a 612 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.

356 complaints in 33 days
#275 of 422 ranked codes

Rate centers in 612

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.

TWINCITIES588
CAMBRIDGE2

Timeline

  1. 1947 612 assigned in the original North American Numbering Plan.

More about 612

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 590 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 612

What state is area code 612?

Minnesota.

Is a call from 612 a scam?

Not by itself. 612 drew 356 FTC complaints in the 33 days to 30 October 2026, 275th 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 612 numbers?

Lumen / CenturyLink holds the largest share of assigned number blocks at 28.0%. 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 612?

No. NANPA records 612 as 7-digit dialing for local calls.

Sources and verification

NANPA dialing note for this code: “7D”. Reviewed by the data desk. Spotted an error? Request a correction.