Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9ZTT callsign genealogy
Currently held by Watanabe, Hideaki
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 KB9ZTT's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KB9ZTT.
- Watanabe, HideakiILgranted 2011-03-31cancelled 2021-03-19