Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4VVJ callsign genealogy
Currently held by WATANABE, TATUYA
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 KF4VVJ'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 KF4VVJ.
- WATANABE, TATUYAMPgranted 2007-11-29cancelled 2007-11-29