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KFNY La Preciosa 1440 AM logo.png
CityRiverside, California
Broadcast areaRiverside-San Bernardino, California
BrandingLa Preciosa 1440
Frequency1440 kHz
First air date1941 (as KPRO)
FormatAdult hits
Power1,000 watts unlimited
Facility ID27390
Transmitter coordinates34°1′36″N 117°21′27″W / 34.02667°N 117.35750°W / 34.02667; -117.35750Coordinates: 34°1′36″N 117°21′27″W / 34.02667°N 117.35750°W / 34.02667; -117.35750
Callsign meaningWarehoused from KFNY
Former callsignsKPRO (1941-1986)
KDIF (1986-2010)
KFNY (2010-2017)
OwneriHeartMedia, Inc.
(Citicasters Licenses, Inc.)
Sister stationsKGGI, KKDD, KMYT, KTMQ, KPWK

KFOO (1440 kHz, "La Preciosa 1440") is a commercial AM radio station licensed to Riverside, California. The station broadcasts a Spanish adult hits format to the Riverside-San Bernardino, California area.[1] KFOO is owned by iHeartMedia, Inc..[2] Its studios are located in Riverside and the transmitter tower is in Colton along the Santa Ana River.


The station first signed on in 1941 as KPRO and was owned by Broadcasting Corporation of America.[3]

In December 1964, KPRO was purchased by radio and television personality Dick Clark. The station was held under the name Progress Broadcasting, a wholly owned subsidiary of Dick Clark Productions.[4] In March 1978, Progress sold KPRO to Inland Empire Broadcasters, majority-owned by station vice president Howard N. Fisher, for $780,000.[5]

On September 27, 2010, the station, known as KDIF since 1986, flipped from Spanish oldies to an all-comedy format and began using new call letters KFNY.[6]

On August 4, 2014, following the demise of the 24/7 Comedy radio network, the station flipped to news/talk as "NewsTalk AM 1440".[7]

On May 15, 2017, KFNY exchanged formats with KKDD in San Bernardino, flipping to Spanish adult hits and sending the news/talk format to 1290 AM. KFNY was rebranded as "La Preciosa 1440" (swapping formats.[8] On November 14, the station swapped call signs with KFOO in Tacoma, Washington as part of an impending sale of the latter station.


  1. ^ "Station Information Profile". Arbitron. Summer 2009. Retrieved 2009-09-12.
  2. ^ "KFOO Facility Record". United States Federal Communications Commission, audio division. Retrieved 2009-09-12.
  3. ^ "Directory of Standard Broadcasting Stations of the United States" (PDF). Broadcasting/Telecasting Yearbook Number. Broadcasting Publications Inc. 1948. p. 88. Retrieved June 2, 2018.
  4. ^ "KPRO, WLOB sales announced" (PDF). Broadcasting. Broadcasting Publications Inc. December 28, 1964. p. 9. Retrieved June 2, 2018.
  5. ^ "Changing Hands" (PDF). Broadcasting. Broadcasting Publications Inc. March 27, 1978. p. 43. Retrieved June 2, 2018.
  6. ^ "24/7 Comedy Radio Debuts On KFNY-A/Riverside, CA". AllAccess.com. All Access Music Group. September 27, 2010. Retrieved May 10, 2017.
  7. ^ "End Of 24/7 Comedy Leads To Flips Across The Country". AllAccess.com. All Access Music Group. August 4, 2014. Retrieved May 10, 2017.
  8. ^ "iHeart Swaps Inland Empire AM Formats". RadioInsight. RadioBB Networks. May 15, 2017.

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