Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NC0O callsign genealogy
Currently held by Patwardhan, Ravindra
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 NC0O's current licensee, walking backwards.
- Patwardhan, RavindraCAgranted 2022-03-14cancelled 2022-04-19
Successor callsigns
Callsigns held now by people who previously held NC0O.
- Wang, ZhaoweiMAgranted 2020-02-15
All historical holders
Every license row we've seen with the callsign NC0O, oldest first.
- Hise, Thomas L IA2006-06-20 → cancelled 2018-09-12
- Wang, Zhaowei MA2018-10-02 → cancelled 2020-02-15
- Patwardhan, Ravindra CA2022-04-19 active