Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1JDO callsign genealogy
Currently held by WEGRZYN, RONALD J
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 N1JDO's current licensee, walking backwards.
- WEGRZYN, RONALD JCTgranted 2019-10-28cancelled 2025-05-13
- KB8CRUno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held N1JDO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1JDO, oldest first.
- FRAPPIER, MICHAEL J NH2002-10-08 → cancelled 2015-01-06
- WEGRZYN, RONALD J CT2025-05-13 active