Get a local business phone number in Summit, IL

What area code is Summit, IL?

Summit village is a Census place in Cook County, Illinois, with an estimated 10,761 residents in 2024. NANPA lists 33 exchanges for its rate center across 4 area codes; 708 has the most (28, 85%). 708 is part of an overlay with 464, so a new local number in Summit may carry any of those codes depending on which have numbers available. Summit is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 708 are dialed as 1 plus ten digits and toll calls as 1 plus ten digits.

Phone carriers in Summit

13 carriers hold the 33 exchanges assigned to Summit's rate center. Cellco Partnership d/b/a Verizon Wireless - Il has the most, with 8. 22 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.

Local prefixes for Summit

These are the central office codes NANPA records for Summit. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 4 of the 33 were assigned in 2020 or later.

When Summit's exchanges were assigned

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

Rate centers and local calling in Summit

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

Keeping an existing Summit number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 708 when you pick it.

Businesses around Summit

Summit 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 Summit 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 Summit 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.