Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3AMK callsign genealogy
Currently held by Shibata, Akinori
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 W3AMK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W3AMK.
No current licensee on record previously held this callsign.