Get a local business phone number in Mazon, IL

What area code is Mazon, IL?

Mazon, in Grundy County, Illinois, had a Census-estimated population of 1,481 in July 2024. NANPA lists 3 exchanges for its rate center across 2 area codes; 779 has the most (2, 67%). 779 is part of an overlay with 815, so a new local number in Mazon may carry any of those codes depending on which have numbers available. Mazon is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 779 are dialed as 1 plus ten digits and toll calls as 1 plus ten digits.

Phone carriers in Mazon

3 carriers hold the 3 exchanges assigned to Mazon's rate center. Peerless Network of Illinois, LLC - Il has the most, with 1. 3 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 Mazon

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Mazon's rate center (MAZON). The earliest assignment date recorded in the file for these codes is 2013. 1 of the 3 were assigned in 2020 or later.

When Mazon's exchanges were assigned

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

Rate centers and local calling in Mazon

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Mazon's numbers are rated to the MAZON rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Mazon number.

Keeping an existing Mazon number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 779 when you pick it.

Businesses around Mazon

Mazon is part of the Chicago-Naperville-Elgin, IL-IN metro area, home to 9.4 million people in 2024. County Business Patterns counted 248,519 business establishments in the Chicago, IL-IN metro area in 2023, employing 4,285,971 people. The largest sectors by establishment count are professional, scientific, and technical services (32,828), health care and social assistance (29,768), and retail trade (25,308).

Setting up a Mazon business line

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.

Porting a number you already use in Mazon 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.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Chicago, IL-IN metro area, 17 users on RingCentral RingEX Core come to $510.00 a month and on Ooma Office Pro $424.15, at month-to-month list prices checked September 28, 2026. Callata comes to $339.00 a month for 17 users ($99 a month with 5 users included, then $20 per additional user), below both.