Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB4HNJ callsign genealogy
Currently held by BYLES, WILLIAM H
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 WB4HNJ's current licensee, walking backwards.
- BYLES SR, JOHN CVAgranted 2014-11-07cancelled 2014-12-09
Successor callsigns
Callsigns held now by people who previously held WB4HNJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB4HNJ, oldest first.
- BYLES, WILLIAM H VA1997-08-20 → cancelled 2009-08-21
- BYLES SR, JOHN C VA2025-01-11 active