Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4TWX callsign genealogy
Currently held by Warrick III, Jasper M
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 K4TWX's current licensee, walking backwards.
- Warrick III, Jasper MNCgranted 2018-04-19cancelled 2020-05-22
Successor callsigns
Callsigns held now by people who previously held K4TWX.
No current licensee on record previously held this callsign.