Spring 2026 Station Information Profile (SIP) on File with Nielsen
| Call Letter: | KOSS-AM | |
| Frequency: | 1380 | |
| Station Name: | Old School | |
| Format: | Rhythmic Oldies | |
| Network(s): | IND | |
| City of License: | LANCASTER | |
| County of License: | Los Angeles North Northeast | |
| Mailing Address: | 2284 S VICTORIA AVE STE 2G VENTURA, CA 93003 |
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| Phone: | 661-947-3107 | |
| Fax: | 661-272-5688 | |
| URL Address: | highdesertbroadcasting.com | |
| Broadcasts in HD: |
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| Internet Streams: |
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Spring 2026 Reminder:
You no longer need to submit program information to Nielsen.
To view the simulcast combos that have requested Total Line Reporting, click here .