Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N8BTW callsign genealogy
Currently held by Kurobe, Mitsuo
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 N8BTW's current licensee, walking backwards.
- Kurobe, MitsuoCAgranted 2026-06-10cancelled 2026-06-30
Successor callsigns
Callsigns held now by people who previously held N8BTW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N8BTW, oldest first.
- SPENCER, THOMAS A OH2013-08-01 → cancelled 2026-03-06
- Kurobe, Mitsuo CA2026-06-30 active