Area code 612

Where area code 612 is

612 is one of 8 geographic area codes serving Minnesota; NANPA records its in-service date as January 1, 1947. It is not part of an overlay, so every number in its territory starts with 612. It is in the Central time zone. The places with the most assigned exchanges include Cambridge.

Where 612 numbers are local

612 holds 16% of the 3,755 central office codes assigned in Minnesota, the 3rd most of the state's 8 codes. 1 Census place could be matched to rate centers with 612 exchanges; the most populous is Cambridge (10,974). Each place page lists the exact prefixes and carriers for that town.

Dialing 612 numbers

According to NANPA's dialing-plan data, local calls within 612 are dialed as seven digits and toll calls as 1 plus ten digits. Seven-digit local dialing is still permitted here, but customers calling from other area codes, and every mobile contact list, use all ten digits.

Phone companies in area code 612

38 carriers hold the 590 central office codes assigned in 612. Qwest Corporation has the most, with 145 (25%). 329 of the codes (56%) are pooled, meaning the code holder shares blocks of 1,000 numbers with other carriers instead of using all 10,000 itself. The code holder is not necessarily the carrier serving a given number today, since numbers can be ported between providers.

Rate centers and towns in 612

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 612 has codes in 2 rate centers. Rate center names in the file are abbreviations; where one matches a Census place, the table links to that city's local-number page.

612 code assignments over time

An area code has 800 possible central office codes that start with 2 through 9, a few of which are reserved (such as N11 service codes and 555). 590 are assigned in 612, 74% of 800. 69 were assigned in 2020 or later.

Using area code 612 for business calls

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

Porting a number you already use in area code 612 is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.