WSPR (1490 AM) is a radio station licensed to serve West Springfield, Massachusetts. The station is owned by John Fuller, through licensee Red Wolf Broadcasting Corporation. It airs a Spanish tropical format. During the late 1960s and early 1970s the station aired a Top 40 format under the callsign WTXL. Although it was programmed very well, it never achieved rating success due to the heavy competition from crosstown WHYN/560. The station was assigned the WACM call letters by the Federal Communications Commission on September 15, 1983.