South Carolina's 854 Area Code: Charleston & Myrtle Beach

Quick answer: The 854 area code overlays 843 across coastal South Carolina, covering Charleston, Myrtle Beach, Hilton Head Island, and Beaufort. It went into service on March 14, 2015, as the state's first all-services overlay, adding capacity to the 843 numbering plan first created in 1998. Every call in the 843/854 region requires 10-digit dialing, and the entire area runs on Eastern Time.

Introduction

South Carolina's Lowcountry and Grand Strand stretch along nearly 200 miles of Atlantic coastline, from the Savannah River near Hilton Head Island up through Myrtle Beach and the North Carolina line. The 854 area code shares that entire territory with 843, tying together historic Charleston, the resort towns of the Grand Strand, and the Sea Islands of Beaufort County under one numbering plan. It's one of the most tourism-heavy corridors in the Southeast, and one of the first regions in South Carolina to need a second area code.

The region's economy runs on tourism, shipping, and the military in roughly equal measure. Charleston anchors one of the busiest container ports on the East Coast and draws millions of visitors a year to its antebellum architecture and Lowcountry cuisine. Myrtle Beach and the Grand Strand pull in golf and beach tourists from across the country, while Beaufort County is home to Parris Island's Marine Corps Recruit Depot and the resort community of Hilton Head Island.

This guide covers where the 854 area code reaches, how it came to overlay 843, the major cities and counties it serves, how to dial in and out of the region, why a local number still matters for business, and how to spot the scam calls that increasingly target South Carolina residents.

Where the 854 area code reaches

The 843/854 numbering plan area covers roughly 17 counties across the eastern third of South Carolina and the state's southern tip, including Charleston, Berkeley, Dorchester, Beaufort, Horry, Florence, Georgetown, Colleton, Jasper, and Williamsburg counties. That footprint takes in around 62 cities and towns, from the historic peninsula of downtown Charleston to the golf courses of Myrtle Beach and the marshes surrounding Hilton Head Island.

Because 854 is an overlay rather than a geographic split, it doesn't cover new territory — every 854 number sits in exactly the same region as an existing 843 number. Businesses that already use a 843 line and want a second local number, or lines activated after 2015, are the ones most likely to see an 854 prefix. Just across the state line, the 984 area overlays 919 around Raleigh's Research Triangle in a similar all-services arrangement.

Rapid population growth along the coast throughout the 2000s and early 2010s used up the original 843 supply, which is why South Carolina regulators authorized 854 as a same-region overlay rather than another geographic split.

A short history of the 854 code

South Carolina used a single 803 area code for the entire state for decades after area codes were introduced in 1947. As the coast grew through tourism and retirement migration in the late 20th century, that single code strained to keep up with demand for new phone lines.

On March 22, 1998, regulators split 803, carving out the eastern third of the state and the southern coastal counties into a new 843 area code. The split gave Charleston, the Grand Strand, and the Lowcountry their own dedicated number supply for the first time.

That supply didn't last as growth continued along the coast. On December 16, 2013, the South Carolina Public Service Commission approved 854 as the state's first all-services overlay, and the new code entered service on March 14, 2015. A permissive dialing period allowed both seven- and ten-digit dialing through September 18, 2015, after which 10-digit dialing became mandatory across the entire 843/854 region.

Major cities in the 854 area code

The table below lists ten of the most recognizable communities inside the 843/854 overlay, along with the county each sits in and what it's best known for.

How to dial an 854 number

Every call to or from an 854 or 843 number requires all ten digits — area code plus the seven-digit line number — even between two businesses on the same street. That rule has applied across the region since September 19, 2015, when the permissive dialing period for the 854 overlay ended.

Coastal South Carolina sits entirely within the Eastern Time zone (ET), unlike some overlay regions that straddle two zones. Clocks run on Eastern Standard Time (EST, UTC-5) in winter and switch to Eastern Daylight Time (EDT, UTC-4) for daylight saving in spring and summer. That places the region on the same schedule as Charlotte, Atlanta, and New York, which matters for businesses coordinating call center hours across the Southeast. Further north, the 848 area overlays 732 across central New Jersey on that same Eastern Time clock.

Why choose an 854 number

A local 854 or 843 number still carries weight in a region built on tourism relationships and Lowcountry hospitality. South Carolina customers are more likely to answer a call showing a familiar area code, and local businesses — from Charleston tour operators to Myrtle Beach property managers — use that recognition to book more reservations.

A local number also helps businesses serve the coast's seasonal tourism surge without opening a second office. A company based elsewhere in the Southeast can activate an 854 line for its Grand Strand or Lowcountry customers, and call routing lets that number ring a laptop, a cell phone, or a full customer-service team without the caller knowing the difference.

For businesses expanding into coastal South Carolina, My Country Mobile can set up an 854 line that goes live the same day, with routing and voicemail configured before the first call comes in.

Staying safe from 854 scam calls

Scammers routinely spoof local area codes, including 854 and 843, because a familiar prefix makes people more likely to pick up. Neighbor spoofing — where caller ID shows a number resembling someone nearby — is the most common tactic reported across the region, followed by robocalls impersonating utility companies or vacation-rental booking scams targeting Grand Strand visitors, and phishing scripts designed to pressure fast payments.

A few habits help. Let calls from unknown numbers go to voicemail rather than answering live. Never share personal or financial details with a caller who contacted you first, and never send gift cards or wire transfers on demand — caller ID alone can't confirm who's really calling, since spoofing makes any number easy to fake.

Carriers increasingly rely on the FCC's FCC verification framework to flag likely spoofed calls, and residents can report suspicious activity directly to the FCC.

Conclusion

The 854 area code has shared coastal South Carolina's numbering plan with 843 for more than a decade, adding capacity without redrawing the map. Together the two codes cover roughly 17 counties from Charleston to Myrtle Beach to Hilton Head Island, tying together the state's historic port city, its busiest beach resorts, and its Sea Islands under one overlay complex.

For residents, that history mostly shows up as a dialing habit — ten digits, every time, no exceptions. For businesses, it's a branding decision: a local 854 number signals a company is genuinely part of the Lowcountry or Grand Strand, whether the team sits in a Charleston office or works remotely. My Country Mobile builds that local presence into a phone system that routes calls, texts, and voicemail anywhere a business needs them to go, without asking customers to dial anything unfamiliar.

Key takeaways

• The 854 area code overlays 843 across coastal South Carolina, covering roughly 17 counties from Charleston to Myrtle Beach.
• 843 split from 803 on March 22, 1998; 854 was added as South Carolina's first all-services overlay on March 14, 2015.
• All 843/854 calls require 10-digit dialing, mandatory since September 19, 2015.
• The region runs entirely on Eastern Time (UTC-5 EST / UTC-4 EDT).
• Charleston, Myrtle Beach, Hilton Head Island, and Beaufort are among its largest destinations.
• Local 854 numbers help Lowcountry and Grand Strand businesses build trust with tourists and residents alike.

Frequently asked questions