Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NH2O callsign genealogy
Currently held by Villacorta, Danny O
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 NH2O's current licensee, walking backwards.
- Villacorta, Danny OGUgranted 2002-04-07cancelled 2008-10-21
Successor callsigns
Callsigns held now by people who previously held NH2O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NH2O, oldest first.
- YAMADA, KOJI GU1993-02-23 → cancelled 2005-02-24
- Villacorta, Danny O GU2018-09-26 active