Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AG4QR callsign genealogy
Currently held by Chang, Javier A
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 AG4QR's current licensee, walking backwards.
- Chang, Javier ASCgranted 1994-08-22cancelled 2002-04-12
Successor callsigns
Callsigns held now by people who previously held AG4QR.
- Chang, Javier ASCgranted 2004-04-24cancelled 2016-04-26