Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KV4RT callsign genealogy
Currently held by Thompson, James J
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 KV4RT's current licensee, walking backwards.
- Thompson, James JFLgranted 2005-01-05cancelled 2013-10-18
Successor callsigns
Callsigns held now by people who previously held KV4RT.
No current licensee on record previously held this callsign.