Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD6FBJ callsign genealogy
Currently held by CHRISTISON, MARK T
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 KD6FBJ's current licensee, walking backwards.
- Christison, Mark TCAgranted 2018-12-21cancelled 2019-02-09
Successor callsigns
Callsigns held now by people who previously held KD6FBJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD6FBJ, oldest first.
- CHRISTISON, MARK T CA2001-10-24 → cancelled 2014-01-22
- Christison, Mark T CA2019-02-09 active