Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA3BRT callsign genealogy
Currently held by BARTHOLOMEW, MARK E
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 KA3BRT's current licensee, walking backwards.
- BARTHOLOMEW, MARK EPAgranted 2021-01-11cancelled 2021-03-23
Successor callsigns
Callsigns held now by people who previously held KA3BRT.
No current licensee on record previously held this callsign.