Get a local business phone number in Sullivan, IL

What area code is Sullivan, IL?

With 6,213 residents in the Census 2024 estimate, Sullivan sits in Moultrie County, Illinois. NANPA lists 3 exchanges for its rate center across 2 area codes; 217 has the most (2, 67%). 217 is part of an overlay with 447, so a new local number in Sullivan may carry any of those codes depending on which have numbers available. Sullivan is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 217 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Who holds Sullivan phone exchanges

3 carriers hold the 3 exchanges assigned to Sullivan's rate center. MCC Telephony LLC has the most, with 1. 3 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Sullivan can come from any of these blocks; once it is yours, porting lets it move between providers.

Local prefixes for Sullivan

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Sullivan. The earliest assignment date recorded in the file for these codes is 2010. 1 of the 3 were assigned in 2020 or later.

When Sullivan's exchanges were assigned

Assignment dates show when each block of Sullivan numbers was added to the local supply.

What makes a number local to Sullivan

What a caller sees as "local" is the area code plus prefix. In Sullivan, those come from the SULLIVAN rate center, as recorded by NANPA.

Keeping an existing Sullivan number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 217 when you pick it.

Businesses around Sullivan

Sullivan is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 322,415 business establishments in Illinois in 2023, employing 5,661,761 people. The largest sectors by establishment count are professional, scientific, and technical services (37,946), health care and social assistance (37,597), and retail trade (35,801).

A Sullivan number on Callata

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.

If you already have a number in Sullivan, 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.

The comparison below uses 18 users, the rounded average establishment size in Illinois. At list prices checked September 28, 2026, that is $449.10 a month on Ooma Office Pro and $540.00 on RingCentral RingEX Core. On Callata the same 18 people cost $359.00 a month, less than either per-seat plan.