Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AG4QU callsign genealogy
Currently held by Thola, Robert H
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 AG4QU's current licensee, walking backwards.
- Thola, Robert HKYgranted 1999-01-29cancelled 2002-04-16
Successor callsigns
Callsigns held now by people who previously held AG4QU.
- Thola, Robert HMTgranted 2022-02-23