Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7STI callsign genealogy
Currently held by Otsuki, Yujiro
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 K7STI's current licensee, walking backwards.
- Otsuki, YujiroNVgranted 2013-10-17cancelled 2013-11-09
Successor callsigns
Callsigns held now by people who previously held K7STI.
- Otsuki, YujiroNVgranted 2024-01-05