SC Area Codes
There are four area codes in use in the state of South Carolina, where there was only one in 1994. This state population has been growing at a rapid rate for decades and the demands on the telephone exchanges have required additional area code creation.
When I came to South Carolina decades ago, 803 was the only prefix. Now we have four. In 1995 area code 803 was split and formed the geographical 864. 803 was again split in 1998 to establish 843. Then in 2015, more numbers were needed close to the coast, so a new area code, 854, was overlaid on existing geographical 843.
In just a couple plus decades, we have gone from one to four area codes.