The Complete 843 Area Code Guide: Charleston, South Carolina Coverage & Business Benefits

Tourism, Military Bases and Charleston's Business Boom

The 843 area code covers coastal South Carolina's best-known towns — historic Charleston, sunny Myrtle Beach, and the resorts of Hilton Head Island. It split off from the old 803 code in 1998. Since then it has served eastern and coastal South Carolina, a region built on tourism, military bases, health care, and a fast-growing pool of professional firms. Charleston keeps landing on national best-city lists for business, so an 843 number now signals a real presence in one of the Southeast's most sought-after markets.

Understanding the 843 Area Code and Its Geographic Relevance

Area code 843 is a geographic NANP code covering coastal and eastern South Carolina. The old 803 code once served the whole state, but coastal growth outran it. So in 1998, 843 took over the eastern half, and by 2015 demand was strong enough that the 854 overlay was added to share the same territory. The 843 territory borders Georgia to the southwest. Businesses eyeing Augusta and northeastern Georgia can add reach with a 706 area code just across the state line.

Benefits of an 843 Area Code for Businesses

• Charleston market access — Charleston is one of the fastest-growing metros in the Southeast, drawing corporate relocations, fintech startups, and long-standing manufacturers alongside its historic tourism trade. An 843 number plants a business firmly in this high-growth market.
• Tourism and hospitality reach — Myrtle Beach pulls in over 14 million visitors a year, and Hilton Head Island holds premium resort rates all year round. A local 843 number matters for hospitality operators, property managers, tour companies, and travel services.
• Military community connection — Beaufort County is home to Marine Corps Air Station Beaufort and Parris Island, while Joint Base Charleston serves the wider Charleston metro. Businesses that support military families and contractors gain a lot from a familiar local presence.
• Higher answer rates — South Carolinians are far more likely to pick up a call from an 843 number than from an unfamiliar out-of-state prefix. That is a real edge for sales, patient outreach, and customer service teams.
• Local SEO — an 843 number on Google Business Profile and in local directories lifts visibility in searches specific to Charleston, Myrtle Beach, and Hilton Head.

Companies that serve both the Charleston coast and the Upstate often pair an 843 line with a 864 area code to also cover Greenville and Spartanburg, giving them a presence across the whole state.

Matching a Line to Rentals, Practices and Remote Workers

• Step 1 — define your use case: Decide if the number is for a main business line, a vacation rental line, a health care practice, or a remote worker covering the Charleston market. That choice shapes which features you need, such as auto-attendant, call recording, or CRM routing.
• Step 2 — find a provider with 843 inventory: Pick a cloud provider that keeps a real-time list of available 843 numbers. Acepeak sets up South Carolina numbers instantly, with no physical presence required.
• Step 3 — choose your line type: A standard local number, a vanity number, or a DID for team routing. You can also port an existing 843 number if you are switching providers.
• Step 4 — activate and go live: Sign up, verify your identity, pick your number, and set up call routing. Most users are live within minutes. Porting from another carrier usually takes one to three business days.

Dialing Format for the 843 Area Code

• Local calls — 10 digits: 843-XXX-XXXX
• U.S. long-distance — 1 + 843 + XXX-XXXX
• International — +1 843 XXX-XXXX

Entrepreneurs and small businesses entering the South Carolina market can turn to the U.S. Small Business Administration for free guidance on licensing, funding, and local compliance.

How 843 Became South Carolina's First Overlay Territory

For most of the twentieth century the whole of South Carolina answered to a single area code, 803. That ended on March 22, 1998, when 843 split away and took the entire coastline and the southern tip of the state — Charleston, Myrtle Beach, Hilton Head, Beaufort and everything between — while 803 kept the Midlands around Columbia. It was a clean geographic divorce of the sort regulators preferred at the time: one code, one region, seven-digit local dialing preserved.

That arrangement lasted fifteen years. In 2013 the numbering plan administrator projected that 843 would run out of central office prefixes by 2015, and rather than split the coast again, regulators layered a second code on top. 854 entered service on March 14, 2015 as South Carolina's first all-services overlay — the first time anywhere in the state that two area codes shared the same ground.

Two things follow from that for anyone getting a number here. First, ten-digit dialing became mandatory across the region, so the seven-digit habit that survived the 1998 split finally ended in 2015. Second, and more useful commercially: 843 has been the coast's code since 1998, while 854 has only been issuing numbers since 2015. Both ring the same towns and are dialed identically, but along a coastline where a great many businesses are seasonal or recently arrived, an 843 number is the one that reads as established. That the coast needed the state's first overlay at all is a fair measure of how much faster it has grown than the rest of South Carolina.

Competing on a Coast That Keeps Drawing Tourists and Firms

The 843 area code is the voice of coastal South Carolina. It ties together historic Charleston, the beaches of Myrtle Beach, the resorts of Hilton Head, and the military hubs around Beaufort under one recognizable prefix. The region keeps drawing tourists and companies alike. A local 843 number from Acepeak gives any business the credibility to compete in one of the Southeast's most compelling markets.