Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6TB callsign genealogy
Currently held by DELL, JOHN 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 K6TB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K6TB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6TB, oldest first.
- DELL, JOHN W CA2006-09-07 → cancelled 2018-11-30
- Brough, Thomas TX2018-12-21 active