Get a local business phone number in Madison, MN

What area code is Madison, MN?

With 1,488 residents in the Census 2024 estimate, Madison sits in Lac qui Parle County, Minnesota. All 3 exchanges NANPA lists for its rate center are in area code 320. Madison is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 320 are dialed as seven digits and toll calls as 1 plus ten digits.

Madison exchanges by carrier

3 carriers hold the 3 exchanges assigned to Madison's rate center. Frontier Communications of Minnesota, INC. has the most, with 1. 1 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.

Madison phone prefixes

These are the central office codes NANPA records for Madison. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2006. None were assigned in 2020 or later.

Rate centers and local calling in Madison

NANPA ties every exchange to a rate center. For Madison that is MADISON, so a number from one of these exchanges reads as local to people in and around Madison.

Keeping an existing Madison number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 320 when you pick it.

Who does business near Madison

Madison is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 154,455 business establishments in Minnesota in 2023, employing 2,803,410 people. The largest sectors by establishment count are health care and social assistance (19,985), retail trade (17,727), and construction (17,568).

A Madison number on Callata

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

If you already have a number in Madison, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.

An 18-person team is the benchmark here, the rounded average establishment size in Minnesota. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $540.00 a month and Ooma Office Pro $449.10. On Callata the same 18 people cost $359.00 a month, less than either per-seat plan.