Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KH2O callsign genealogy
Currently held by KOBUNE, MITSUNORI
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 KH2O's current licensee, walking backwards.
- BARROWS, DAVID AGUgranted 2021-07-20cancelled 2023-01-27
Successor callsigns
Callsigns held now by people who previously held KH2O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KH2O, oldest first.
- KOBUNE, MITSUNORI MP2010-10-13 → cancelled 2022-10-18
- BARROWS, DAVID A GU2023-01-27 active