WPOP was a very popular top 40 radio station during the 1960s and early 1970s. The station achieved its highest level of success during this era. WPOP dropped its pop music format in June 1975 in favor of all-news, carrying NBC's News and Information Service.
On January 27, 2012, the station began to simulcast on WPKX (97.9 FM); that station eventually changed its call letters to WUCS. WPOP switched from ESPN Radio to Fox Sports Radio on March 5, 2012, with ESPN Radio remaining on WUCS; the station also carries The Jim Rome Show and the existing local show The Drive (simulcast on WAVZ in New Haven).
On August 17, 2015 WPOP changed their format from sports to news/talk, branded as "News Radio 1410".