Confidence: Medium · Source: FCC ULS · As of 2026-09-10
KB4MAT callsign genealogy
Currently held by Tribula, Michael A
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 KB4MAT's current licensee, walking backwards.
- Tribula, Michael ANCgranted 2018-05-01cancelled 2025-12-13
Successor callsigns
Callsigns held now by people who previously held KB4MAT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4MAT, oldest first.
- CONOVER, JENNIFER R FL1994-10-26 → cancelled 2006-10-27
- Tribula, Michael A NC2025-12-13 active