Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AG6ZM callsign genealogy
Currently held by Chou, Derek
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 AG6ZM's current licensee, walking backwards.
- Chou, DerekCAgranted 2012-05-22cancelled 2014-03-26
Successor callsigns
Callsigns held now by people who previously held AG6ZM.
- Chou, DerekCAgranted 2018-06-19