Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD7BWK callsign genealogy
Currently held by FISCHBACK, JOHN E
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 KD7BWK's current licensee, walking backwards.
- Sampson, Murray CWAgranted 2015-10-08cancelled 2016-04-12
Successor callsigns
Callsigns held now by people who previously held KD7BWK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD7BWK, oldest first.
- FISCHBACK, JOHN E AZ1998-05-19 → cancelled 2010-05-20
- Sampson, Murray C WA2026-01-23 active