Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6JFZ callsign genealogy
Currently held by ZIEMIENSKI, JOHN 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 W6JFZ's current licensee, walking backwards.
- ZIEMIENSKI, JOHN Fcancelled 1998-07-15
Successor callsigns
Callsigns held now by people who previously held W6JFZ.
- ZIEMIENSKI, JOHN FCAgranted 2020-03-26