Confidence: Medium · Source: FCC ULS · As of 2026-09-11
K0USB callsign genealogy
Currently held by ADAMS, GLEN H
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K0USB's current licensee, walking backwards.
- Birdwell, Keith WKSgranted 2015-05-22cancelled 2016-12-20
Successor callsigns
Callsigns held now by people who previously held K0USB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0USB, oldest first.
- ADAMS, GLEN H MO1994-05-17 → cancelled 2006-05-18
- Birdwell, Keith W KS2016-12-20 active