Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NB1R callsign genealogy
Currently held by Zavyalov, Dmitry
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 NB1R's current licensee, walking backwards.
- Zavyalov, DmitryCAgranted 2014-06-24cancelled 2014-09-12
Successor callsigns
Callsigns held now by people who previously held NB1R.
- SURPRENANT, JAMES MCTgranted 2022-07-21
All historical holders
Every license row we've seen with the callsign NB1R, oldest first.
- Carpenter, Edwin H MA2002-04-29 → cancelled 2004-03-18
- SURPRENANT, JAMES M MA2008-09-16 → cancelled 2012-08-18
- Zavyalov, Dmitry CA2024-06-21 active