Get a local business phone number in Madison, WI

Area codes in Madison

With 285,300 residents in the Census 2024 estimate, Madison sits in Dane County, Wisconsin. NANPA lists 200 exchanges for its rate center across 2 area codes; 608 has the most (197, 99%). 608 is part of an overlay with 353, so a new local number in Madison may carry any of those codes depending on which have numbers available. Madison is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 608 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Phone carriers in Madison

32 carriers hold the 200 exchanges assigned to Madison's rate center. Wisconsin Bell INC has the most, with 61. 135 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Local prefixes for Madison

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Madison's rate center (MADISON). The earliest assignment date recorded in the file for these codes is 2001. 23 of the 200 were assigned in 2020 or later.

When Madison's exchanges were assigned

The table groups Madison's exchanges by the decade NANPA recorded them as assigned.

How local numbers work 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 608 when you pick it.

Who does business near Madison

Madison is part of the Madison, WI metro area, home to 708,000 people in 2024. County Business Patterns counted 17,791 business establishments in the Madison, WI metro area in 2023, employing 358,759 people. The largest sectors by establishment count are professional, scientific, and technical services (2,203), retail trade (2,026), and health care and social assistance (1,934).

Setting up a Madison business line

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

Porting a number you already use in Madison 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.

The comparison below uses 20 users, the rounded average establishment size in the Madison, WI metro area. At list prices checked September 28, 2026, that is $499.00 a month on Ooma Office Pro and $600.00 on RingCentral RingEX Core. Callata comes to $399.00 a month for 20 users ($99 a month with 5 users included, then $20 per additional user), below both.