Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4WRJ callsign genealogy
Currently held by Walker, John R
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 K4WRJ's current licensee, walking backwards.
- Walker, John RSCgranted 2022-03-15cancelled 2022-04-05
Successor callsigns
Callsigns held now by people who previously held K4WRJ.
No current licensee on record previously held this callsign.