KFTZ (103.3 MHz, "Z103") is a Top-40 (CHR) radio station located in Idaho Falls, Idaho. It is licensed, owned and operated by Riverbend Communications. KFTZ has been Southeast Idaho's hot music station since the 80s. In November of 2023, KFTZ and its sister stations launched HD2 channels. KFTZ launched Throwbacks 103 highlighting songs from its history and HD3 is a dance channel playing music from their weekend mixshow.^[1]

KFTZ

Idaho Falls, Idaho
Broadcast area	Idaho Falls, Idaho Pocatello, Idaho Rexburg, Idaho Blackfoot, Idaho
Frequency	103.3 MHz (HD Radio)
Branding	Z103
Programming
Format	Top 40/CHR
Subchannels	HD2: "Throwback 103" HD3: "Vibez 103"
Ownership
Owner	Riverbend Communications
Sister stations	KLCE, KCVI, KTHK, KEII
History
First air date	1986
Technical information
Facility ID	18116
Class	C1 (main station) D (repeater)
ERP	100,000 watts 200 watts (KFTZ-FM1)
HAAT	201 meters (main station)
Repeater(s)	KFTZ-FM1 (103.3) Pocatello
Links
Webcast	Listen Live Listen Live (HD2) Listen Live (HD3)
Website	z103.fm