Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM6ARC callsign genealogy
Currently held by Harnmuanphongs, Jonsiri
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 KM6ARC's current licensee, walking backwards.
- Harnmuanphongs, JonsiriCAgranted 2013-05-07cancelled 2016-02-24
Successor callsigns
Callsigns held now by people who previously held KM6ARC.
No current licensee on record previously held this callsign.