Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1RDC callsign genealogy
Currently held by Curry, Ryan D
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 N1RDC's current licensee, walking backwards.
- Curry, Ryan DCOgranted 2018-11-02cancelled 2018-12-14
Successor callsigns
Callsigns held now by people who previously held N1RDC.
- CURRY, RYAN DWYgranted 2019-06-28
All historical holders
Every license row we've seen with the callsign N1RDC, oldest first.
- SHERIDAN, DAVID J MA2003-11-05 → cancelled 2016-01-19
- Curry, Ryan D WY2018-12-14 → cancelled 2019-06-28