Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TGX callsign genealogy
Currently held by Drenth, Jasen S
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 K4TGX's current licensee, walking backwards.
- Drenth, Jasen SMIgranted 2017-11-22cancelled 2019-06-18
Successor callsigns
Callsigns held now by people who previously held K4TGX.
No current licensee on record previously held this callsign.