Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NC4Y callsign genealogy
Currently held by SHIRES, MARION 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 NC4Y's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NC4Y.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NC4Y, oldest first.
- SHIRES, MARION D FL2012-08-17 → cancelled 2024-11-16
- Kilkenny, Thomas R FL2024-12-03 active