Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4U callsign genealogy
Currently held by KNIGHT, JOHNNY 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 WB4U's current licensee, walking backwards.
- KNIGHT, JOHNNY Lcancelled 1998-12-15
Successor callsigns
Callsigns held now by people who previously held WB4U.
- KEYSEEAR, KENNETH LVAgranted 2026-08-12