 On the same day KOSU moved to its new tower, KGND changed its calls to KOSN.In March 2006, KOSU added two new translators in the Tulsa area, at 101.9 FM in Okmulgee (owned by PRC) and 107.3 FM in Bixby (owned directly by OSU).In 2011, KOSU added a new station on KOSR 88.3 FM in Stillwater.