Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ6TOM callsign genealogy
Currently held by BUDAR, THOMAS R
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 KZ6TOM's current licensee, walking backwards.
- Bartholet, Thomas HCAgranted 2019-01-30cancelled 2019-04-30
Successor callsigns
Callsigns held now by people who previously held KZ6TOM.
- BUDAR, THOMAS RCAgranted 2016-05-11
All historical holders
Every license row we've seen with the callsign KZ6TOM, oldest first.
- BUDAR, THOMAS R CA2005-06-18 → cancelled 2006-08-05
- Bartholet, Thomas H ID2019-04-30 active