Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4CDG callsign genealogy
Currently held by GAMMILL, CLARENCE D
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 WB4CDG's current licensee, walking backwards.
- GAMMILL, CLARENCE DTNgranted 2013-10-23cancelled 2022-04-05
Successor callsigns
Callsigns held now by people who previously held WB4CDG.
No current licensee on record previously held this callsign.