Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1YOC callsign genealogy
Currently held by Kornacki, Walter J
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 W1YOC's current licensee, walking backwards.
- Kornacki, Leah MPAgranted 2015-10-05cancelled 2015-11-13
Successor callsigns
Callsigns held now by people who previously held W1YOC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1YOC, oldest first.
- Kornacki, Walter J CT2008-02-20 → cancelled 2013-11-22
- Kornacki, Leah PA2025-09-04 active