Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4UDI callsign genealogy
Currently held by KENWARD JR, PAUL C
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 WB4UDI's current licensee, walking backwards.
- KENWARD JR, PAUL CMIgranted 2022-04-18cancelled 2024-09-13
Successor callsigns
Callsigns held now by people who previously held WB4UDI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB4UDI, oldest first.
- SPOONER, JOHN E FL1996-06-12 → cancelled 2008-06-13
- KENWARD JR, PAUL C MI2024-09-13 active