Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB1BU callsign genealogy
Currently held by Imamura, Satoshi
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 AB1BU's current licensee, walking backwards.
- Imamura, SatoshiMAgranted 2002-09-23cancelled 2002-12-24
Successor callsigns
Callsigns held now by people who previously held AB1BU.
- Imamura, SatoshiNJgranted 2012-12-21cancelled 2025-02-20