Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA9BZ callsign genealogy
Currently held by THOMPSON, HAROLD L
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 AA9BZ's current licensee, walking backwards.
- AZIZ, ASIMVAgranted 2010-06-14cancelled 2011-12-13
Successor callsigns
Callsigns held now by people who previously held AA9BZ.
- THOMPSON, HAROLD LOHgranted 2024-08-14
All historical holders
Every license row we've seen with the callsign AA9BZ, oldest first.
- THOMPSON, HAROLD L OH2001-09-01 → cancelled 2004-10-09
- AZIZ, ASIM VA2021-09-16 active