Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF6DWD callsign genealogy
Currently held by Tapia, Jason M
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 KF6DWD's current licensee, walking backwards.
- Tapia, Jason MCAgranted 2023-05-19cancelled 2023-06-06
Successor callsigns
Callsigns held now by people who previously held KF6DWD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF6DWD, oldest first.
- SCHAEFFER, JOHN AP1996-05-17 → cancelled 2008-05-20
- Tapia, Jason M CA2023-06-06 active