Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA0AZ callsign genealogy
Currently held by MOSEMANN, RUSSELL J
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 AA0AZ's current licensee, walking backwards.
- MOSEMANN, RUSSELL JIAgranted 2015-07-14cancelled 2024-03-26
Successor callsigns
Callsigns held now by people who previously held AA0AZ.
- KOCHANOWICZ, ANDREW LMOgranted 2019-11-08
All historical holders
Every license row we've seen with the callsign AA0AZ, oldest first.
- KOCHANOWICZ, ANDREW L MO2010-03-01 → cancelled 2019-11-08
- MOSEMANN, RUSSELL J IA2024-03-26 active