Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WH2O callsign genealogy
Currently held by Wood, Harold R
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 WH2O's current licensee, walking backwards.
- Wood, Harold RGUgranted 2017-10-11cancelled 2017-10-31
Successor callsigns
Callsigns held now by people who previously held WH2O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WH2O, oldest first.
- UCHIDA, MASAYUKI CO2004-08-18 → cancelled 2016-10-28
- Wood, Harold R GU2017-10-31 active