The 612 area code covers Minneapolis-Saint Paul and Cambridge in Minnesota.
Area code 612 is in Minnesota, on Central Time. In the 612 area, phone numbers are given out in Isanti County. It has been in service since 1947.
- Where
- Isanti County, Minnesota
- Time zone
- Central Time
- In service since
- 1947, one of the original area codes
- Shares its area with
- No other area code
- Prefixes in use
- 590
- How to dial
- Local calls inside 612 can still be dialed with just 7 digits.
Find out who called you from a 612 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (612) number is on today, use our free carrier lookup.
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Minneapolis-Saint Paul holds every phone prefix in area code 612.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 590 prefixes in use shows where 612 numbers are actually given out.
- Minneapolis-Saint Paul588 prefixes, 100%
- Cambridge2 prefixes, <1%
Qwest (Lumen) holds the most phone number prefixes in area code 612: 145 of 590.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 590 prefixes in use in 612 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| Qwest (Lumen)Lumen's landline company | 145 | 25% |
| T-MobileMobile network | 93 | 16% |
| AT&T MobilityMobile network | 66 | 11% |
| Level 3 (Lumen)Lumen's business and wholesale network | 20 | 3% |
| American MessagingPaging network | 18 | 3% |
| BandwidthSupplies numbers to VoIP and app-based phone services | 16 | 3% |
| 29 other carriers | 232 | 39% |
56% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
612 has been split 4 times since 1947.
1947
612 is one of the original North American area codes.
1996
On March 17, 1996, 320 splits off and takes part of the 612 area.
1998
On July 12, 1998, 651 splits off and takes part of the 612 area.
2000
On February 27, 2000, 763 and 952 split off and take part of the 612 area.
A 612 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 612 are 651, 952 and 763.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
These are the questions people ask most about area code 612.
Where is area code 612?
612 covers Minneapolis-Saint Paul and Cambridge in Minnesota. In the 612 area, phone numbers are given out in Isanti County.
What state is area code 612 in?
Minnesota. 612 is a Minnesota area code on Central Time.
What cities use area code 612?
The places holding the most 612 prefixes are Minneapolis-Saint Paul and Cambridge. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 612?
No single phone company owns 612. NANPA's records show Qwest (Lumen) holds the most 612 prefixes, 145 of 590, followed by T-Mobile and AT&T Mobility. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 612 in?
612 is on Central Time.
When did area code 612 start?
612 is one of the original North American area codes, in service since 1947.
How do I dial a 612 number?
Local calls inside 612 can still be dialed with just 7 digits.
Is 612 a toll-free number?
No. 612 is a regular area code for Minneapolis-Saint Paul and Cambridge in Minnesota, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 612?
The closest are 651 (Minneapolis-Saint Paul, Minnesota), 952 (Minneapolis-Saint Paul, Minnesota), 763 (Minneapolis-Saint Paul, Minnesota) and 507/924 (Rochester, Minnesota), measured between the centres of each area.
Who called me from a 612 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 612 a scam?
612 is a real Minnesota area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.