612 area code — Twin Cities, MN geographic

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

612 is the area code for Twin Cities, Minnesota, in service since January 1, 1947, Central 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 588 active NXX prefixes in 612, assigned to 39 carriers. 327 of those prefixes are pooled — shared between carriers in thousands-number blocks. The code spans 2 rate centers (billing localities).

Practical takeaway: the 612 label narrows geography to Minnesota, the prefix narrows it to a locality, and neither authenticates a caller. Verification means calling back through a number you found yourself.

The dialing plan is 7D for home-NPA local calls and 10D across codes.

Official projections put exhaust at 1Q 2048.

Later relief produced 320 (1996), 651 (1998), 763 (2000), 952 (2000) from its territory.

Largest localities in 612

FAQ

Will 612 run out of numbers?

NANPA's current forecast projects exhaust in 1Q 2048 — decades of capacity remain.

Why am I getting spam calls from 612 numbers?

Scammers spoof recognizable area codes so calls look local or familiar. A displayed 612 number does not prove the call originated there — see our guide to spotting spoofed calls.

Where is a 612 number from?

612 is assigned to Twin Cities and surrounding areas of Minnesota in the Central time zone. The three digits after the area code (the prefix) narrow it down to a rate center.

Is 612 a toll-free number?

No. 612 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.