Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4TPF callsign genealogy
Currently held by Panzenbeck, Timothy 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 W4TPF's current licensee, walking backwards.
- Panzenbeck, Timothy FFLgranted 2020-12-29cancelled 2024-02-27
- KA2YQJno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W4TPF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4TPF, oldest first.
- LANCIANESE, UMBERTO N SC2006-05-04 → cancelled 2018-06-30
- Panzenbeck, Timothy F FL2024-02-27 active