Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA7ESX callsign genealogy
Currently held by GALVIN, WILLIAM J
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 KA7ESX's current licensee, walking backwards.
- KD4JJRno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KA7ESX.
- GALVIN, WILLIAM JVAgranted 2020-10-14