Get a local business phone number in Summerville, SC

What area code is Summerville, SC?

Summerville town is a Census place in Dorchester County, South Carolina, with an estimated 52,625 residents in 2024. NANPA lists 25 exchanges for its rate center across 2 area codes; 843 has the most (16, 64%). 843 is part of an overlay with 854, so a new local number in Summerville may carry any of those codes depending on which have numbers available. Summerville is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 843 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Who holds Summerville phone exchanges

11 carriers hold the 25 exchanges assigned to Summerville's rate center. Bellsouth Telecomm INC d/b/a Southern Bell Tel & Tel has the most, with 9. 19 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.

Summerville phone prefixes

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Summerville's rate center (SUMMERVL). The earliest assignment date recorded in the file for these codes is 2002. 6 of the 25 were assigned in 2020 or later.

When Summerville's exchanges were assigned

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

Rate centers and local calling in Summerville

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

If your business already has a Summerville number, porting it to Callata is free and keeps it on your cards, listings and vehicles.

Businesses around Summerville

Summerville is part of the Charleston-North Charleston, SC metro area, home to 870,000 people in 2024. County Business Patterns counted 22,892 business establishments in the Charleston, SC metro area in 2023, employing 321,692 people. The largest sectors by establishment count are professional, scientific, and technical services (3,015), retail trade (2,964), and construction (2,367).

A Summerville 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.

Porting a number you already use in Summerville 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 14 users, the rounded average establishment size in the Charleston, SC metro area. At list prices checked September 28, 2026, that is $349.30 a month on Ooma Office Pro and $420.00 on RingCentral RingEX Core. Callata comes to $279.00 a month for 14 users ($99 a month with 5 users included, then $20 per additional user), below both.