Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4JRU callsign genealogy
Currently held by Carroll, James 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 K4JRU's current licensee, walking backwards.
- Carroll, James WKYgranted 2005-04-15cancelled 2005-08-30
Successor callsigns
Callsigns held now by people who previously held K4JRU.
No current licensee on record previously held this callsign.