Confidence: Medium · Source: FCC ULS · As of 2026-09-11
W6SWM callsign genealogy
Currently held by CHUMA, 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 W6SWM's current licensee, walking backwards.
- CHUMA, SHINJIFLgranted 2007-02-09cancelled 2007-05-18
Successor callsigns
Callsigns held now by people who previously held W6SWM.
No current licensee on record previously held this callsign.