Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1XXB callsign genealogy
Currently held by Kawamoto, Osamu
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 W1XXB's current licensee, walking backwards.
- Kawamoto, OsamuNCgranted 2014-06-19cancelled 2015-01-13
Successor callsigns
Callsigns held now by people who previously held W1XXB.
No current licensee on record previously held this callsign.