KQFN (1580 kHz) is a commercial AM radio station licensed to Tempe, Arizona and serving the Phoenix metropolitan area. It is owned by CRC Broadcasting Company, Inc., and airs a sports radio format, primarily emphasizing on sports betting, branded as "The Fanatic". The station has two local afternoon drive-time shows, with programming from BetQL Network, Infinity Sports Network, and Vegas Stats & Information Network (VSiN) heard at other times throughout the week when there are no live play-by-play broadcasts.

The studios and offices are on East Evans Road in Scottsdale. The transmitter is located off South 40th Street near East Southern Avenue in southeast Phoenix.

The station had been owned by ABC for its Radio Disney format and operated at the maximum power permitted by the Federal Communications Commission for commercial AM stations, 50,000 watts around the clock. But in October 2015, as it was being sold, the station went silent. It returned to the air under new ownership on February 13, 2017 and is now simulcast on two FM translators, K257CD in Phoenix, operating at 99.3 MHz and K240EU in Tempe, at 95.9 MHz. In addition, the AM station drastically reduced its power at night to 95 watts, using a non-directional antenna, instead of the previous complicated directional antenna multi-tower array, required to maintain its former nighttime power of 50,000 watts. By June 2023, the station downgraded its daytime power to 24,000 watts while upgrading its nighttime power to 245 watts. The station also moved from a Class D station back to a Class B station.

1580 AM is Canadian clear-channel frequency, on which CKDO in Oshawa is the dominant Class A station. There are no other Class A stations on this frequency in North America.

The station first began broadcasting on June 1, 1960, with the call sign to KYND. The station's license was assigned by the FCC on July 25, 1960. KYND was originally owned by Dick Gilbert, a singer, music editor, and disc jockey. During the period the station was KYND, it broadcast middle of the road music, and was branded as "The Kind Station".

The station originally broadcast only during daytime hours, with a power of 10,000 watts. In the mid-1960s the station's power was increased 50,000 watts during the day, with a power of 10,000 watts during critical hours. In 1966, the station's owner, Dick Gilbert sold the station to Rene Cote for $341,250, which included $148,250 for station equipment and a noncompetition agreement, and $193,000 for a 10-year consultation contract.

In 1967, the station was purchased by Buck Owens for $350,000. Owens had the station's call sign changed to KTUF, and switched its format to country music, a field where Owens was a noted singer. In April 1969, KTUF's programming began to be simulcast on 102.5 KNIX-FM during daytime hours when KTUF was on the air, with KNIX-FM continuing the format at night. KNIX-FM had been purchased by Buck Owens the previous year.

During the period the station was KTUF, the station was branded as "All American Radio" and "All American Country Radio".