Owned by iHeartMedia, it serves Upstate South Carolina with studios on North Main Street in Greenville.

Because 660 AM is a clear channel frequency reserved for Class A WFAN in New York City, WESC must go off the air at night to avoid interference.

Both stations simulcast from 1948 until the late 1960s, when WESC-FM switched to beautiful music, while WESC continued as a country outlet.

Clear Channel leased it to the Radio Training Network, which owns non-commercial station 89.3 WLFJ-FM.

In August 2019, the LMA ended, and the station returned to the WESC call letters and country music simulcast.

The previous programming continues to air on WLFJ-FM's fourth HD Radio channel and FM translator 92.9 W225AZ.