843 area code
Charleston area, Eastern Time.Area code 843 covers Charleston, Florence, Myrtle Beach and 89 more places in South Carolina, on Eastern Time. 854 covers the same area.
Right now in Charleston
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
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Where 843 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 843 has 92. Each one's share is how many 843 numbers start there. Its biggest metro area is Charleston-North Charleston, SC.
- Charleston24%
- Florence7%
- Myrtle Beach7%
- Beaufort4%
- Hilton Head4%
- Mount Pleasant2%
- West Myrtle Beach2%
- Summerville2%
- Georgetown2%
Also: Moncks Corner, Bluffton, Hartsville, Conway, East Conway, Cheraw, Marion, North Myrtle Beach, Walterboro, Dillon, Bennettsville, Collins Creek + 71 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call an 843 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 843 number to them, since you can't tell a work line from a personal cell.
What applies to 843Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
843 and 854
843 went into service on March 22, 1998, split off from 803. 843 and 854 cover the same area, so new numbers can get either code and neighbors can have different area codes. 843 holds 81% of the area's exchanges; 854 holds the rest. Local calls take all 10 digits.
- 1998843 starts
- 2015854 overlay
Source: NANPA area code database
Other South Carolina area codes
All South Carolina area codesCalling a list of 843 numbers?
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843 area code FAQ
What area code is 843?
843 is a South Carolina area code for Charleston, Florence, Myrtle Beach, Beaufort and 88 more places.
What time zone is the 843 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 854 the same as 843?
Same area, different code. 843 and 854 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 843 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 843 area code start?
On March 22, 1998. It was split from 803.
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