Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA0RU callsign genealogy
Currently held by TSUDAKA, KAORU
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 KA0RU's current licensee, walking backwards.
- TSUDAKA, KAORUGUgranted 2012-03-21cancelled 2016-09-10
Successor callsigns
Callsigns held now by people who previously held KA0RU.
No current licensee on record previously held this callsign.