Get a local business phone number in Chester, IL

Chester area codes

Chester city is a Census place in Randolph County, Illinois, with an estimated 6,759 residents in 2024. All 3 exchanges NANPA lists for its rate center are in area code 618. 618 is part of an overlay with 730, so a new local number in Chester may carry any of those codes depending on which have numbers available. Chester is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 618 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Chester exchanges by carrier

3 carriers hold the 3 exchanges assigned to Chester's rate center. Cellco Partnership d/b/a Verizon Wireless - 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. 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.

Chester phone prefixes

These are the central office codes NANPA records for Chester. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2002. None were assigned in 2020 or later.

What makes a number local to Chester

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

New local numbers are drawn from carrier inventory, so the exact 618 numbers available change over time; porting an existing number is free.

Businesses around Chester

Chester 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 Chester 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 Chester, 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.