Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4UKR callsign genealogy
Currently held by YORK, PATRICK M
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 N4UKR's current licensee, walking backwards.
- ILNYTSKY, YURIYNCgranted 2025-01-17cancelled 2025-02-15
Successor callsigns
Callsigns held now by people who previously held N4UKR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4UKR, oldest first.
- YORK, PATRICK M NC2011-12-06 → cancelled 2023-12-07
- ILNYTSKY, YURIY NC2025-02-15 active