Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF5WDH callsign genealogy
Currently held by Pfeiffer Jr, Joseph J
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 KF5WDH's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KF5WDH.
- Pfeiffer Jr, Joseph JNMgranted 2024-09-05