Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9DSC callsign genealogy
Currently held by Caldwell, Dwayne S
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 KB9DSC's current licensee, walking backwards.
- Caldwell, Dwayne SINgranted 2019-02-07cancelled 2019-03-05
Successor callsigns
Callsigns held now by people who previously held KB9DSC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB9DSC, oldest first.
- NICK JR, FRANK F WI1989-12-12 → cancelled 2002-03-07
- Caldwell, Dwayne S IN2019-03-05 active