Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA1BJ callsign genealogy
Currently held by URSO, SEBASTIAN
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 AA1BJ's current licensee, walking backwards.
- Burns JR, Joseph GRIgranted 2020-04-10
Successor callsigns
Callsigns held now by people who previously held AA1BJ.
- Burns JR, Joseph GRIgranted 2020-04-10
All historical holders
Every license row we've seen with the callsign AA1BJ, oldest first.
- URSO, SEBASTIAN CT1992-03-31 → cancelled 2004-04-01
- Burns JR, Joseph G RI2017-04-21 → cancelled 2020-04-10