Hanahan, SC is currently using one area code which is area code 843. Area Code 843 was created from a split of area code 803 and was placed into service on March 22, 1998.
In addition to Hanahan, SC area code 843 covers the eastern and coastal areas of South Carolina including Charleston, Florence, Hilton Head Island, Mount Pleasant, Myrtle Beach, North Charleston, and Summerville in addition to many smaller communities within the service area.
Hanahan, SC is located in Berkeley County and observes the Eastern Time Zone. View our Times by Area Code tool.