Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD3Q callsign genealogy
Currently held by Shaffer, Barry F
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 KD3Q's current licensee, walking backwards.
- Shaffer, Barry FAZgranted 2023-01-10cancelled 2026-03-20
Successor callsigns
Callsigns held now by people who previously held KD3Q.
- Brown, Robert AAKgranted 2024-02-27
All historical holders
Every license row we've seen with the callsign KD3Q, oldest first.
- SUTTON, HARRIMAN W PA2008-09-29 → cancelled 2018-05-15
- Brown, Robert A AK2020-06-19 → cancelled 2024-02-27
- Shaffer, Barry F AZ2026-03-20 active