Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KV4XG callsign genealogy
Currently held by WARREN, JEFFREY 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 KV4XG's current licensee, walking backwards.
- WARREN, JEFFREY JVAgranted 2013-03-25cancelled 2014-04-16
Successor callsigns
Callsigns held now by people who previously held KV4XG.
- WARREN, JEFFREY JVAgranted 2015-03-13cancelled 2020-04-10