Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4BFJ callsign genealogy
Currently held by GARLINGHOUSE, WILLIAM J
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 W4BFJ's current licensee, walking backwards.
- GARLINGHOUSE, WILLIAM JMIgranted 2016-02-18cancelled 2016-03-08
Successor callsigns
Callsigns held now by people who previously held W4BFJ.
No current licensee on record previously held this callsign.