Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4OZ callsign genealogy
Currently held by Roberts, Terrance D
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 KT4OZ's current licensee, walking backwards.
- Roberts, Terrance DVAgranted 2010-03-25cancelled 2017-12-19
Successor callsigns
Callsigns held now by people who previously held KT4OZ.
- RAYBURN II, LESTER SALgranted 2020-07-03
All historical holders
Every license row we've seen with the callsign KT4OZ, oldest first.
- RAYBURN II, LESTER S AL1998-11-05 → cancelled 2000-07-08
- Roberts, Terrance D VA2017-12-19 active