On July 1, 1983, the station first signed on as KNAA. It was owned by Donald S. Beck, who served as its General Manager, Sales Manager and Program Director. The station broadcast at only 300 watts and carried an adult contemporary format. It was later sold to Johnson Broadcasting, which also owned AM 1270 KPLY. The format remained adult contemporary but the call sign changed to KKMR. In 1993, the station changed call letters to KNDE, airing a soft rock format. In March 1998, the station was acquired by Salt Broadcasting, which already owned 100.1 KTHX, an adult album alternative station also serving the Reno media market. Salt Broadcasting switched 100.9's call letters to KRZQ, and began airing an alternative rock music format, branded as "Reno's New Rock Alternative." At 12 noon on September 12, 2011, KRZQ changed to a hot adult contemporary format. KRZQ began calling itself "Reno's Best Music Mix" and "Mix 100.9." The change in format did not result in immediate job losses, as many personalities started simply using different names. The hot adult contemporary was designed to fill the void from when KLCA dropped it for contemporary hit radio by July 2011. On September 28, 2011, KRZQ changed call letters to KMXW, to go with the "Mix 100.9" branding. On June 20, 2014, following KURK 92.9's sale to the Educational Media Foundation, it was announced that KMXW would adopt the classic rock format heard on KURK. It would become "100.9 The Bandit" once the sale was completed. KURK 92.9 then flipped to EMF's Air 1Contemporary Christian music network. On August 1, 2014, the KURK call sign moved to 100.9 FM. In 2016, KURK rebranded as "100.9 K-Rock" and flipped to a broad mainstream rock format, playing fifty years of rock, trying to take on all of Reno's other rock stations at once. The station used a "shut up and rock" approach, limiting DJ chatter to stress its music commitment. On February 15, 2017, KURK changed its call letters to KRFN. That was followed on March 7, 2017, with a switch from mainstream rock to adult contemporary, branded as "Fun 101".
KRFN-HD2
On August 25, 2018, KRFN launched a country format on its HD2 subchannel, branded as "95.1 The Wolf". The country format moved from KWFP 92.1 FM Sparks, which switched to alternative rock.
