Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0CTO callsign genealogy
Currently held by Gregory Jr, Michael N
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 N0CTO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N0CTO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0CTO, oldest first.
- Gregory Jr, Michael N VA2003-06-17 → cancelled 2015-06-18
- Blackmore, Richard A CO2017-04-25 active