Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD5FY callsign genealogy
Currently held by Masuda, Yoshio
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 AD5FY's current licensee, walking backwards.
- Masuda, YoshioTXgranted 2001-07-17cancelled 2001-10-10
Successor callsigns
Callsigns held now by people who previously held AD5FY.
No current licensee on record previously held this callsign.