Complex sentence: On January 14,2013, the call sign of 94.7 was changed to WRXP; those calls were formerly used on 101.9 FM in New York City (the present WFAN-FM) under two different owners.
Split into simpler sentences: On January 14,2013, the call-sign of 94.7 was changed to WRXP. That call-sign was formerly used on 101.9 FM in New York City (the present WFAN-FM) under two different owners.