Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4HAT callsign genealogy
Currently held by Campbell Jr, William L
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 WB4HAT's current licensee, walking backwards.
- Campbell Jr, William LTNgranted 2016-07-16cancelled 2019-02-20
Successor callsigns
Callsigns held now by people who previously held WB4HAT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB4HAT, oldest first.
- CAMPBELL, WILLIAM L GA2006-10-24 → cancelled 2019-02-12
- Campbell Jr, William L TN2019-02-20 active