{{Infobox radio station
| name = KOSF
| image =
| image_size =
| alt =
| caption =
| city = [[San Francisco, California]]
| area = San Francisco, CA
| branding =
| slogan = Iheart80s @
| frequency = 103.7 [[Megahertz|MHz]]
| translator =
| repeater =
| airdate = May 3, 1982
| last airdate =
| format = [[80s to Now]]
| language = English
| power =
| erp = 6.4 kW
| haat =
| class = B
| facility_id = 65484
| coordinates = {{coord|37.6881|-122.4364|type:landmark_region:US_source:FCC|display=inline,title}}
| callsign_meaning =
| former_callsigns =
| former_frequencies =
| affiliations =
| operator =
| owner =
| licensee = IHM Licenses, LLC
| sister_stations =
| webcast =
| website = [https://classichits1037.iheart.com/] iheart.com
}}

'''KOSF''' is an American ([[FM Broadcasting|FM]]) [[radio station]] licensed by the [[Federal Communications Commission|FCC]] to serve the community of [[San Francisco, California]] on the frequency of 103.7 [[Megahertz|MHz]] . The station license is assigned to IHM Licenses, LLC. KOSF-FM) airs a [[80s to Now]] format.

The [[FCC]] first licensed this station to begin operations on May 3, 1982 using callsign KGO--FM.<ref name=fcchistory>{{cite web|url=https://licensing.fcc.gov/cgi-bin/prod/cdbs/forms/prod/getimportletter_exh.cgi?import_letter_id=77312|publisher=Federal Communications Commission|title=FCC History card for KSFK}}</ref>

The station has held the KOSF callsign since January 3, 2012.<ref name="fcccsh">{{cite web |title=Call Sign History|url= http://licensing.fcc.gov/cgi-bin/ws.exe/prod/cdbs/pubacc/prod/call_hist.pl?Facility_id=65484&Callsign=KOSF |work=FCC Media Bureau CDBS Public Access Database}}</ref>
==Call signs used at this station==
{| class="wikitable"
|-
! As Of
! Call Sign
|-
|May 3, 1982|| KGO-FM ||
|-
|January 3, 1984|| KLOK-FM ||
|-
|August 7, 1987|| KKSF ||
|-
|December 13, 2011|| KKSF-FM ||
|-
|January 3, 2012|| KOSF ||
|}
==References==
{{reflist}}
==External links==
* [https://classichits1037.iheart.com/ iheart.com] Official KOSF FM Website
* FCC Public Inspection File online [https://publicfiles.fcc.gov/fm-profile/kosf]
* {{ FM station data|KOSF}}
{{-}}
[[Category:Radio stations in California]]
[[Category:Radio stations established in 1982]]
[[Category:1982 establishments in California]]
[[Category: Radio stations in the United States]]
{{ California-radio-station-stub}}