Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AH0BK callsign genealogy
Currently held by WATANABE, TATUYA
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 AH0BK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AH0BK.
No current licensee on record previously held this callsign.