Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5ZPF callsign genealogy
Currently held by SIGAFOOSE, WILLIAM H
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 K5ZPF's current licensee, walking backwards.
- SIGAFOOSE, WILLIAM HTXgranted 1997-02-06cancelled 1999-11-16
Successor callsigns
Callsigns held now by people who previously held K5ZPF.
No current licensee on record previously held this callsign.