KOST 103.5 Los Angeles
KOST 103.5 is Los Angeles’ feel-good adult contemporary station, blending familiar favourites and current pop with music and lifestyle features for Southern California listeners. The station is home to the Ellen K Morning Show and also features presenters including Kari Steele, Sandy Stec and Delilah. Listen live for a warm mix of pop, soft hits and familiar songs.
Stream Health
Degraded- Online now
- Yes
- Last checked
- Nov 14, 2026, 10:05 AM
- 24-hour uptime
- 100.00%
- 7-day uptime
- 100.00%
- 30-day uptime
- 55.00%
- Average response time
- 5410 ms
Frequently Asked Questions
KOST 103.5 is an adult contemporary radio station serving Los Angeles, California, with a feel-good music format.
KOST plays adult contemporary music, including familiar pop favourites, soft hits and selected current songs.
Ellen K hosts KOST 103.5’s weekday morning show. The station also features presenters such as Kari Steele, Sandy Stec and Delilah.
Yes. KOST provides a live online stream through its official website and iHeartRadio.
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