Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3MCO callsign genealogy
Currently held by HINES JR, ROY L
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 N3MCO's current licensee, walking backwards.
- Nemcosky, Christopher GCOgranted 2018-08-14cancelled 2018-09-01
Successor callsigns
Callsigns held now by people who previously held N3MCO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3MCO, oldest first.
- HINES JR, ROY L MD1992-05-05 → cancelled 2004-05-06
- NEMCOSKY, CHRIS G CO2018-09-01 active