612 Area Code: Minneapolis History, Splits & Dialing

The essentials

612 area code: quick facts

How 612 became Minneapolis’s code

1. January 1947: The FCC area code table lists 612 as opening in January 1947. It lists Minnesota’s 218 with the same month.
2. November 13, 1997: The PUC issues its first order on relief for the exhausting 612 area code (docket P-999/M-97-506). It chooses a geographic split along municipal lines, carried out in two phases.
3. January 1998: A prefix allocation by lottery (the jeopardy plan) begins, according to the PUC.
4. July 12, 1998: Permissive dialing of the new 651 area code for St. Paul and its suburbs begins. The FCC lists 651 as opening in July 1998.
5. December 15, 1998: The PUC orders Phase II, a second split. This first version gave a new code to Minneapolis and Richfield and left the suburbs with 612.
6. January 11, 1999: Dialing of 651 becomes mandatory.
7. February 17 to 19, 1999: The PUC holds public hearings in Richfield, Eden Prairie, and Minneapolis. About 65 members of the public attend.
8. April 6, 1999: On reconsideration, the PUC reverses the Phase II plan. Minneapolis, Fort Snelling, St. Anthony, and Richfield keep 612, and the rest of the territory is divided between two new codes. Permissive dialing for Phase II is set to begin December 1, 1999.
9. February 2000: The FCC lists both 763 and 952 as opening in February 2000.
10. October 24, 2021: Ten-digit local dialing becomes mandatory in the neighboring 952 area code, according to a 911 notice.
11. April 2026: NANPA’s exhaust analysis projects that 612 numbers last until the first quarter of 2048.

Where area code 612 is used

The PUC’s April 6, 1999 order says Minneapolis, Fort Snelling, St. Anthony, and Richfield retain 612. It explains that Minneapolis here means Minneapolis, Fort Snelling, and Richfield, as decided in December 1998, and that St. Anthony was added on the state Department of Public Service’s recommendation. Without St. Anthony, the order says, the city would have become a geographically isolated “peninsula” surrounded by two other area codes. The order says the split followed municipal boundaries for most of the territory and wire centers in some less urban areas.

Two cautions. First, this is a 1999 description, and we found no newer regulator boundary map. The NANPA website offers area code maps, but it blocked automated requests, so we did not use them. Second, a 612 number does not always mean a Minneapolis address. The PUC allowed wireless providers, whose switches serve customers wherever they are, to keep their existing 612 prefixes whatever the switch location. At that time wireless providers held about 165 prefixes in 612. Confirm a specific address with your provider before you assume its area code.

Why 612 needed relief, and why splits were chosen

The 612 shortage of the 1990s was real enough that the PUC rationed prefixes by lottery from January 1998. The April 1999 order also says the FCC had just forbidden state commissions to ration prefixes unless they paired it with an area code relief decision, which pushed the timing of the December 1998 order.

The industry, through NANPA, and the telephone company US WEST asked for an all-services overlay. In March 1999 the Department of Public Service backed a geographic split, as did the Minnesota Business Utility Users Council and the Suburban Rate Authority. The PUC stayed with splits. Its stated reasons were retaining geographic identity, simplicity, retaining seven-digit dialing to the greatest extent, and long-term stability. It also wrote that an overlay “can never be reversed once it is implemented.” The order records that comments favoring an overlay numbered about 75% of nearly 1,200 received, but most responded to a US WEST letter to its business customers.

Numbers have lasted far longer than the 1999 forecasts suggested. NANPA twice a year publishes the projected year and quarter each area code runs out of central office codes. The April 2026 edition, based on data as of March 1, 2026, gives the following for 612. NANPA marks the latest change as caused by increased historical and projected demand.

These are forecasts. They have moved by several years from one edition to the next, so treat 2048 as an estimate. We found no relief plan for 612 in the sources we could open.

Neighboring area codes in the Twin Cities

Three Twin Cities codes were carved out of the old 612. The opening dates are from the FCC table. The territory notes for 763 and 952 are the only part that rests on Wikipedia, since the PUC order describes a northern and a southern area but does not say which code went where.

Minnesota has other codes unrelated to the Twin Cities splits. The FCC lists 218 (January 1947), 507 (January 1954), and 320 (March 1996). NANPA’s April 2026 report projects exhaust for 651 in the fourth quarter of 2100 and for 763 in the fourth quarter of 2109. For 952 it gives only “100+” years.

Overlay status: what the sources show for 612

An overlay puts a second area code on the same territory. The PUC deliberately chose splits for the Twin Cities. We found no document that adds an overlay to 612.

• NANPA, April 2026: the report lists Minnesota’s 612, 651, 763, 952, 218, and 320 each alone, with only the pair “507/924” listed together. The report explains a shared overlay complex in a footnote.
• PUC, 1999: the Commission kept to geographic splits for 612. It described its three-way split as a “long-term, perhaps permanent” solution.
• What we could not confirm: the PUC and NANPA sites blocked most automated requests, so we did not read a current PUC statement on 612. Check the PUC and NANPA for news before you rely on this.

Time zone and daylight saving time

Area code 612 uses Central Time. The tz database zone table lists America/Chicago as “Central (most areas).” It does not name Minnesota, so we also checked federal rules. Under 49 CFR 71.6, the central zone is the part of the United States west of the eastern and central boundary described in 49 CFR 71.5, and a segment of that boundary is headed “Minnesota-Michigan-Wisconsin.” On our own reading of that boundary, Minneapolis lies west of it. None of these sources names Minneapolis itself.

Daylight saving time starts at 2:00 a.m. on the second Sunday of March and ends at 2:00 a.m. on the first Sunday of November. NIST says these rules were enacted by the Energy Policy Act of 2005. In 2026, NIST gives March 8 and November 1 as the change dates.

How to dial a 612 number

A U.S. number is written as a three-digit area code plus a seven-digit number, as in the example below.

We could not find an official statement of the local dialing rule for 612. The PUC’s stated aim in 1999 was to keep seven-digit dialing where possible, but that is history, not a current rule. What the sources do show:

• A 911 notice says local calls within the 952 area code must use 10 digits from October 24, 2021, because of the 988 suicide and crisis line. Seven-digit calls there may not be completed and a recording tells the caller to hang up and redial. The same applies to 218.
• NANPA lists 82 area codes that permitted seven-digit dialing and also used 988 as a central office code. In Minnesota it names only 218 and 952, so 612 was not on that list. That does not say what 612 requires today.
• The notice says 911 and 711 stay three digits. It also says 211, 311, 411, 511, 611, and 811 stay three digits where available, and that long distance still uses 1 plus the area code and number. Dialing 988 routes to the Lifeline from July 16, 2022.

In practice, dialing the area code on every call is the safe habit. The same 911 notice lists equipment that may be set to dial only seven digits: medical monitoring devices, PBXs, fax machines, alarms and gates, speed dialers, mobile contact lists, call forwarding, and voicemail. That list was written for 218 and 952. Whether your own equipment is affected depends on whether it stores local numbers without an area code.

Caller ID and scams with a 612 number

The FTC warns that “Scammers can make any name or number show up on your caller ID.” The FTC calls this spoofing. Scammers can also match the first six digits of your own number, which the FTC calls neighbor spoofing.

• If you pick up and do not recognize the caller, the FTC advises that you hang up.
• Letting an unknown call go to voicemail is one option.
• The FTC says call blocking is your best defense against unwanted calls.

A 612 number shows the code that was assigned, not who is calling or where they are. The sources checked do not say that 612 numbers are targeted more than other codes. Because wireless carriers were allowed to keep 612 prefixes wherever their switches sit, a 612 caller ID is not a reliable sign that the caller is in Minneapolis.

Business numbers in the 612 area

612 is tied to the Minneapolis core. In 1999 the PUC wrote that Minneapolis is “the hub of government, business, shopping, and entertainment” in the area, and kept 612 there so the city kept its identity. Customers in St. Paul, the northern suburbs, and the southwestern suburbs use 651, 763, or 952, so a business serving the whole metro may hold numbers in several codes.

NANPA’s April 2026 report projects 612 lasting into the first quarter of 2048, though forecasts have moved by years between editions. Ask your provider about number availability before you plan a campaign or print a number on materials.

Because the metro uses four codes next to each other, route calls by team or extension, not by area code, and store customer numbers with the area code.

Important: Whether a specific 612 number can be assigned to your business depends on your phone provider and its current inventory. This guide does not make claims about availability.

Before you use a 612 number

• Confirm the number is available from your provider, and get its terms in writing.
• Ask who owns the number and whether it can be moved to another provider if you switch.
• Ask your provider whether seven-digit local dialing still works on your line, since the sources we could open do not say.
• Save every contact, speed dial, alarm, fax, and call-forwarding number with its area code.
• Print the full 10-digit number on stationery, cards, and advertising.
• Route calls by team or extension, because the Twin Cities use four neighboring codes.
• Check each site’s address. The PUC described the 612 boundary by city, so confirm the address with your provider.
• Plan for caller ID. A 612 number does not prove who is calling, and neighbor spoofing copies the first six digits of your own number.

Related guides and tools

• 312 area code guide: Chicago, another Midwest city on Central Time, for comparison with Minneapolis.
• 313 area code guide: Detroit, a Midwest code that was split in the 1990s and later received an overlay.
• Browse all U.S. area code guides, including codes that do not have their own guide yet.
• Business phone system and call routing for local numbers in Minneapolis.

Frequently asked questions