Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4PFD callsign genealogy
Currently held by Druppel, Frederic
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 N4PFD's current licensee, walking backwards.
- Druppel, FredericCAgranted 2024-04-11cancelled 2024-10-29
Successor callsigns
Callsigns held now by people who previously held N4PFD.
- Batty, John DAZgranted 2006-04-14cancelled 2018-06-30