Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AH6KY callsign genealogy
Currently held by Shimizu, Masatoshi
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 AH6KY's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AH6KY.
No current licensee on record previously held this callsign.