Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KA1TBQ callsign genealogy
Currently held by KIRBY, WILLIAM B
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 KA1TBQ's current licensee, walking backwards.
- WHITE, BRIAN TMAgranted 2018-05-09cancelled 2019-02-20
Successor callsigns
Callsigns held now by people who previously held KA1TBQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA1TBQ, oldest first.
- KIRBY, WILLIAM B MA2010-03-19 → cancelled 2017-01-02
- WHITE, BRIAN T MA2019-02-20 active