Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NK9C callsign genealogy
Currently held by HART, CORY P
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 NK9C's current licensee, walking backwards.
- HART, CORY PILgranted 2005-04-12cancelled 2008-03-22
Successor callsigns
Callsigns held now by people who previously held NK9C.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NK9C, oldest first.
- WOLLIN, WILLIAM FL1992-07-21 → cancelled 2004-07-22
- HART, CORY P IL2018-01-09 active