{{Infobox radio station
| name = KOSN
| image =
| image_size =
| alt =
| caption =
| city = [[Ketchum, Oklahoma]]
| area = Unrated
| branding =
| slogan =
| frequency = 107.5 [[Megahertz|MHz]]
| translator =
| repeater =
| airdate = September 27, 1988
| last airdate =
| format = [[NPR News & Ideas]]
| language = English
| power =
| erp = 100 kW
| haat =
| class = C1
| facility_id = 36969
| coordinates = {{coord|36.7703|-95.4522|type:landmark_region:US_source:FCC|display=inline,title}}
| callsign_meaning =
| former_callsigns =
| former_frequencies =
| affiliations =
| operator =
| owner =
| licensee = Oklahoma State University
| sister_stations =
| webcast =
| website = [http://kosu.org/] kosu.org
}}

'''KOSN''' is an American ([[FM Broadcasting|FM]]) [[radio station]] licensed by the [[Federal Communications Commission|FCC]] to serve the community of [[Ketchum, Oklahoma]] on the frequency of 107.5 [[Megahertz|MHz]] . The station license is assigned to Oklahoma State University. KOSN-FM) airs a [[NPR News & Ideas]] format.

The [[FCC]] first licensed this station to begin operations on September 27, 1988 using callsign KGND.

The station has held the KOSN callsign since January 21, 2005.<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=36969&Callsign=KOSN |work=FCC Media Bureau CDBS Public Access Database}}</ref>
==FM Translator==
{| class="wikitable"
|-
! Call Sign
! City, State
! Frequency
|-
| K297AQ || [[ Bixby, OK]] ||align=right| 107.3
|}
==Call signs used at this station==
{| class="wikitable"
|-
! As Of
! Call Sign
|-
||| 870304MB ||
|-
|September 27, 1988|| KGND ||
|-
|January 21, 2005|| KOSN ||
|}
==References==
{{reflist}}
==External links==
* [http://kosu.org/ kosu.org] Official KOSN FM Website
* FCC Public Inspection File online [https://publicfiles.fcc.gov/fm-profile/kosn]
* {{ FM station data|KOSN}}
{{-}}
[[Category:Radio stations in Oklahoma]]
[[Category:Radio stations established in 1988]]
[[Category:1988 establishments in Oklahoma]]
[[Category: Radio stations in the United States]]
{{ Oklahoma-radio-station-stub}}