Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0NDX callsign genealogy
Currently held by MC CLURG, RONALD B
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 N0NDX's current licensee, walking backwards.
- Ptacek, James DNDgranted 2004-11-17cancelled 2007-06-16
Successor callsigns
Callsigns held now by people who previously held N0NDX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0NDX, oldest first.
- MC CLURG, RONALD B IA1991-10-01 → cancelled 2003-10-02
- Ptacek, James D ND2017-03-21 active