The station's studio and transmitter are located at #181 Goldtrade Bldg., P. Burgos St., Tacloban.
On August 16, 1992, DYXY rebranded as Smile Radio and switched to a mass-based format.
On November 23, 1999, the station rebranded as 991 XYFM and returned to Top 40.
On May 16, 2002, the station was relaunched as 99.1 iFM and returned to a mass-based format.
On November 9, 2015, iFM launched its new logo and slogan "Ang Bestfriend Mo!".