Caller ID for
Area code 843
Area code 843 Charleston, South Carolina
Area code 843 is in South Carolina, with numbers assigned in Charleston, Florence, Myrtle Beach and 69 more places. It’s 12:14 AM there now.
- State
- South Carolina6 area codes in South Carolina
- Time zone
- Eastern12:14 AM there now
- Exchanges
- 78372 places
- Overlay
- 854Same area, 10-digit dialing
- No sign-up
- We never contact the number
- Spam risk included
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Where area code 843 is
Numbers in 843 are assigned to 72 places in 21 counties: Charleston County, Berkeley County, Beaufort County, Horry County, Florence County, Georgetown County, plus 15 more.
Charleston has the most, 24% of the exchanges; the rest are spread across 71 other places.
- Charleston186
- Florence57
- Myrtle Beach56
- Beaufort31
- Hilton Head Island28
- Mount Pleasant19
- Georgetown16
- Summerville16
- Bluffton13
- Moncks Corner13
- Hartsville13
- Conway12
- North Myrtle Beach10
- Cheraw10
- Marion10
- Walterboro8
- Bennettsville8
- Dillon8
- Ridgeland6
- Kingstree6
- Johnsonville6
- Darlington6
- St. George6
- Pawleys Island5
Phone companies in 843
783 blocks of numbers in 843 are held by 46 phone companies. The most belong to AT&T (139), Verizon Wireless (103) and T-Mobile (82).
A mix: about 30% wireless, 40% local phone and cable and 30% other carriers, including internet phone services.
A block’s holder is the company it was first assigned to; numbers can move to other carriers since.
History and overlays
843 went into service in 1998, added to the area of 803.
854 (since 2015) shares the same area, so a new number there can get any of these codes and local calls are dialed with all 10 digits.
9 new exchanges were assigned since 2021, the latest in July 2024.
Calling 843
It’s 12:14 AM Eastern time in 843 right now.
From elsewhere in the U.S., dial 1, 843 and the 7-digit number; inside the area, all 10 digits too.
Nearby area codes
South Carolina has 6 area codes: 803, 821, 839, 843, 854 and 864.
- 803 · Columbia, SC · about 81 mi
- 839 · Columbia, SC · about 88 mi
- 472 · Laurinburg, NC · about 115 mi
- 910 · Fayetteville, NC · about 121 mi
- 704 · Charlotte, NC · about 145 mi
- 980 · Charlotte, NC · about 145 mi
From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.
Map of the 843 area code
Map of the 843 area code around Charleston, Florence and Myrtle Beach, South Carolina.
Cities on the map
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Questions about 843
Where is area code 843?
In South Carolina, covering Charleston, Florence and Myrtle Beach and other places across 21 counties.
What time zone is 843 in?
Eastern time. It was 12:14 AM there when this page loaded.
Is 843 an overlay?
Yes. 854 serves the same area, so dial all 10 digits for local calls.
Which phone companies have 843 numbers?
46 companies hold blocks; the most belong to AT&T, Verizon Wireless and T-Mobile. About 30% of blocks are wireless.
Is 843 running out of numbers?
Not on record. 9 new exchanges have been assigned since 2021.