WBLX began in October 1973 as FM counterpart to gospel station WMOO (1550 AM). As WBLX, with the Urban contemporary format, has been one of the market's leading stations with the same calls and format for about 25 years. In 1998, Cumulus acquired competitor WDLT-FM, and skewed it to being an Urban Adult Contemporary. This has allowed WBLX to skew its programming towards a younger audience as a Mainstream Urban. Also for many years, WBLX carried the "93BLX Jams" and "The Beat of the Bay" brandnames, however, in 2000 they changed their slogan to "The Big Station 93BLX".
Cumulus Broadcasting began upgrading its stations to HD Radio broadcasting in 2005. One of the first ten stations to be upgraded was WBLX.
WBLX is one of the most powerful radio stations in the Gulf region. It can be heard from New Orleans, Montgomery, AL, South Georgia, and 100 miles out in the Gulf of Mexico.