Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KH6MB callsign genealogy
Currently held by Witebsky, Bruce N
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 KH6MB's current licensee, walking backwards.
- Witebsky, Bruce NHIgranted 2023-03-08cancelled 2023-11-28
Successor callsigns
Callsigns held now by people who previously held KH6MB.
- BARR, JOSEPH MTXgranted 2026-05-22
All historical holders
Every license row we've seen with the callsign KH6MB, oldest first.
- BARR, JOSEPH M TX2007-10-02 → cancelled 2016-08-02
- Witebsky, Bruce N HI2023-11-28 active