WHHH first went on the air on 28 May 1967 as WNON-FM, and has carried six sets of call letters since, running through WBCI, WIRE, WYJZ, WNOU and WNOW-FM before taking the WHHH calls in 2022. It is licensed to Speedway, Indiana and serves the Indianapolis metropolitan area, with studios on Meridian Street in downtown Indianapolis and a transmitter on the city's east side. The station is owned by Urban One through Radio One of Indiana, LLC, alongside WIBC, WTLC, WTLC-FM, WLHK, WYXB, WFNI and the Telemundo affiliate WDNI-CD. Its HD2 subchannel carries a Regional Mexican format branded La Grande 105.1, relayed on translator W286CM. The website is published by Interactive One, Urban One's digital arm. Today, Hot 100.9 is mainly focused on hip hop and R&B programming built around The Morning Hustle, Keisha Nicole, B-Swift and Posted On The Corner, alongside a website carrying entertainment and celebrity coverage, Black cultural and Indianapolis community features including Indiana Black Expo and Buy Black Indy, Colts and Fever coverage with player interviews, local crime and traffic briefs, and contests, from their studios in Indianapolis, Indiana, United States. One interesting fact: the WHHH call letters are inherited from the market's former 96.3 station and stand for Hot Hoosier Hits, and the station's X account still posts under the handle @Hot963, a leftover from a brand it dropped years ago.