Owned by Audacy, Inc., the station's studios are located in the unincorporated Clark County area of Spring Valley, while KXQQ-FM's transmitter is atop Black Mountain in Henderson.

KXQQ-FM broadcasts in HD: The station signed on October 26, 1981, with the call letters KMZQ-FM.

KMZQ-FM's call letters would be moved to a station on 99.3 FM in Payson, Arizona, co-owned with KMZQ (670 AM) in Las Vegas Valley.

In July 2010, CBS Radio announced that starting on August 16, KKJJ would be replaced with a simulcast of sister station KXNT.

[4][5] On September 4, 2015, at 9 am, after stunting for an hour with songs from multiple genres and liners redirecting KXNT listeners to 840 AM, KXNT-FM flipped to rhythmic hot AC as "Q100.5".