Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0HCM callsign genealogy
Currently held by MATSUMOTO, HIROKI C
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 K0HCM's current licensee, walking backwards.
- MATSUMOTO, HIROKI CCOgranted 2020-05-21cancelled 2020-07-10
Successor callsigns
Callsigns held now by people who previously held K0HCM.
No current licensee on record previously held this callsign.