Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9YR callsign genealogy
Currently held by Wamser, Thomas R
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 AB9YR's current licensee, walking backwards.
- Wamser, Thomas RWIgranted 2011-01-10cancelled 2011-03-02
Successor callsigns
Callsigns held now by people who previously held AB9YR.
- Wamser, Thomas RWIgranted 2021-03-05