Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA4JA callsign genealogy
Currently held by GILMORE, DONALD D
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 AA4JA's current licensee, walking backwards.
- GILMORE, DONALD DTNgranted 2003-12-23cancelled 2011-06-07
Successor callsigns
Callsigns held now by people who previously held AA4JA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA4JA, oldest first.
- YAMAZAKI, SEIICHI GA1998-12-01 → cancelled 2010-12-02
- GILMORE, DONALD D TN2021-04-15 active