Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4JWR callsign genealogy
Currently held by Robinson, Jonathon W
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 K4JWR's current licensee, walking backwards.
- Robinson, Jonathon WFLgranted 2016-07-28cancelled 2016-08-16
Successor callsigns
Callsigns held now by people who previously held K4JWR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4JWR, oldest first.
- Richards, William H VA2004-01-21 → cancelled 2016-04-13
- Robinson, Jonathon W CA2026-08-19 active