Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KB4XT callsign genealogy
Currently held by Blackwell, Kenneth L
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 KB4XT's current licensee, walking backwards.
- Blackwell, Kenneth LALgranted 2016-02-09cancelled 2016-12-31
Successor callsigns
Callsigns held now by people who previously held KB4XT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4XT, oldest first.
- TACKETT, DANNIE L OH1994-07-16 → cancelled 2006-07-18
- Blackwell, Kenneth L AL2016-12-31 active