Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4GIV callsign genealogy
Currently held by Gillan Jr, Thomas 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 K4GIV's current licensee, walking backwards.
- Gillan Jr, Thomas JGAgranted 2009-02-12cancelled 2009-03-10
Successor callsigns
Callsigns held now by people who previously held K4GIV.
- Gillan Jr, Thomas JNCgranted 2019-10-08