Licensed to Brazil, Indiana, United States, the station serves the Terre Haute area.

The station is owned by Joey and Kelsey O’Rourke, through licensee JKO Media Group.

It changed its call sign to WBZI on September 5, 1962; to WWCM on November 9, 1964; and to WNSA on July 13, 1981.

[3] The WWCM call sign returned on July 14, 1982; on June 6, 1985, the station changed its call sign to WSDM; again on October 15, 1987, to WBZL; on February 15, 1992, back to WSDM; on January 31, 2000, to WSDX; on September 24, 2012, to WFNF; and on August 22, 2017, to WAMB.

[4] On September 1, 2017, WAMB changed formats from sports to adult standards, branded as "Timeless Classics 1130 AM 99.5 FM".