According to Federal Communications Commission (FCC) application and license renewal information, KXLX's license was transferred from KMJY 700 which had been broadcasting from Newport, Washington, since June 9, 1986. KMJY was owned and operated by James and Helen Stargel. The call signs for this station before KMJY were KZUN and KTMI. Another Spokane area station on 630kHz in Opportunity, Washington, used the call sign KZUN from 1955 to 1985.
FCC records show that KXLX began broadcasting on 700 kHz on February 27, 2004. In September 2016, FM translator K287BV went on air relaying KXLX.