Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KH7RI callsign genealogy
Currently held by Wisawapalanont, Peeranat
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 KH7RI's current licensee, walking backwards.
- Wisawapalanont, PeeranatHIgranted 2010-12-23cancelled 2015-08-04
Successor callsigns
Callsigns held now by people who previously held KH7RI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KH7RI, oldest first.
- SILVA JR, WILLIAM W HI1999-02-16 → cancelled 2011-02-17
- Wisawapalanont, Peeranat HI2025-05-13 active