Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6JA callsign genealogy
Currently held by NORTH AMERICA PACIFIC UHF RADIO CLUB
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 K6JA's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K6JA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6JA, oldest first.
- HAMILTON, WILLIAM T CA1997-07-28 → cancelled 2001-04-27
- NORTH AMERICA PACIFIC UHF RADIO CLUB CA2017-04-08 active