KFRC (610 AM)

KFRC (610 AM) was a radio station in San Francisco, California. It first began broadcasting on September 24, 1924, from a studio in the Hotel Whitcomb at 1231 Market Street.

The station initially transmitted with 50 watts on a wavelength of 270 meters (≈ 1110 kHz), later moving to about 660 kHz in April 1927. On November 11, 1928, as part of the nationwide frequency reallocation, KFRC was assigned to 610 kHz — a frequency it would retain until 2005.

Over its long history, KFRC operated under various music and entertainment formats and co-owned FM sister stations. In 2005, the AM station was sold to Family Stations; at midnight on April 29, 2005, Family Stations began carrying its programming on 610 AM. On October 3, 2005, the station’s call letters were changed and the “KFRC” callsign was dropped from 610 AM.

The KFRC callsign and legacy continued: on May 17, 2007, the call sign was transferred to an FM station on 106.9 MHz by then-owner CBS Radio, reviving the classic-hits KFRC identity on the FM dial.