Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB4GTR callsign genealogy
Currently held by SARGENT, WILLIAM B
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 WB4GTR's current licensee, walking backwards.
- SARGENT, WILLIAM BFLgranted 2006-08-04cancelled 2016-04-22
Successor callsigns
Callsigns held now by people who previously held WB4GTR.
No current licensee on record previously held this callsign.