Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1RTO callsign genealogy
Currently held by Conroy, Martin C
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 N1RTO's current licensee, walking backwards.
- Conroy, Martin CMAgranted 2022-11-15cancelled 2023-07-11
Successor callsigns
Callsigns held now by people who previously held N1RTO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1RTO, oldest first.
- VINOKUR, GARY M MA1994-04-26 → cancelled 2006-04-27
- Conroy, Martin C MA2023-07-11 active