Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KW4DO callsign genealogy
Currently held by Haruta, Shinji
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 KW4DO's current licensee, walking backwards.
- Haruta, ShinjiFLgranted 2014-10-16cancelled 2014-12-01
Successor callsigns
Callsigns held now by people who previously held KW4DO.
No current licensee on record previously held this callsign.