Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4BLT callsign genealogy
Currently held by Guess III, Gary R
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 KD4BLT's current licensee, walking backwards.
- Guess III, Gary RTNgranted 2022-05-11cancelled 2022-06-01
Successor callsigns
Callsigns held now by people who previously held KD4BLT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4BLT, oldest first.
- YOUNG, JASON T FL2001-06-20 → cancelled 2013-09-18
- Guess III, Gary R TN2022-06-01 active