While Cumulus owns three sports stations in Oklahoma City, WWLS-FM and WKY have mostly local shows on weekdays, while KWPN carries mostly syndicated programming from ESPN Radio.

[4] In the early days of broadcasting, several universities put non-commercial radio stations on the air as a service to students, faculty and the local community.

In 1941, when the North American Regional Broadcasting Agreement (NARBA) was enacted, the station moved to 640 kHz.

[6] It switched its call sign to WWLS, named after Norman Broadcasting's owner, Larry Steckline.

On April 2, 2012, WWLS AM split from its "Sports Animal" simulcast with WWLS-FM and switched to mostly programming from ESPN Radio under new call letters KWPN.

WWLS-FM continued with mostly local sports programming on weekdays, and later began simulcasting on co-owned WKY.