Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6OIF callsign genealogy
Currently held by TAKATSU, MAKOTO
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 W6OIF's current licensee, walking backwards.
- TAKATSU, MAKOTOCAgranted 1999-02-23cancelled 2000-05-09
Successor callsigns
Callsigns held now by people who previously held W6OIF.
No current licensee on record previously held this callsign.