Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4TWF callsign genealogy
Currently held by Frazier, Terry W
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 K4TWF's current licensee, walking backwards.
- Frazier, Terry WGAgranted 2008-10-15cancelled 2008-11-18
Successor callsigns
Callsigns held now by people who previously held K4TWF.
No current licensee on record previously held this callsign.