years. Despite being considered a mainstream rock reporter by Mediabase, KISS-FM has typically been an active rock station, according to Nielsen BDS. KISS-FM callsign KISS-FM is the legal call sign issued to this station by the Federal Communications Commission (FCC). It has had the call letters since its founding in 1946. The KISS-FM call sign is not related to the "KISS-FM" brand name used by iHeartMedia, Inc. iHeart uses the moniker "Kiss-FM" on many of its Top 40/CHR stations and a few using other formats. It originated with Los Angeles's KIIS-FM, which has called itself KIIS-FM since 1975. Despite San Antonio being the headquarters city of iHeartMedia, the company seems to have a gentlemen's agreement not to have a KISS-FM-branded station in the city, while Cox has not attempted to claim rights on the branding despite holding the official KISS-FM call letters from the FCC. Of note, Cox owns WALR-FM, an urban adult contemporary station in its home city of Atlanta, which utilizes the "KISS-FM" branding. iHeart has KISS-FM stations in Los Angeles, Chicago (WKSC-FM), Dallas (KHKS), Boston (WXKS-FM), and other cities. References External links ISS-FM Mainstream rock radio stations in the United States Cox Media Group Radio stations established in 1946 1946 establishments in Texas