Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1FUP callsign genealogy
Currently held by MISAWA, SEIICHI
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 K1FUP's current licensee, walking backwards.
- MISAWA, SEIICHICAgranted 2008-11-17cancelled 2008-12-05
Successor callsigns
Callsigns held now by people who previously held K1FUP.
- MISAWA, SEIICHICAgranted 2019-07-23