Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4JCK callsign genealogy
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 N4JCK's current licensee, walking backwards.
- Kay, Jason CNCgranted 1999-08-27cancelled 2001-10-23
Successor callsigns
Callsigns held now by people who previously held N4JCK.
- ESTEP, SHARON WFLgranted 1998-12-11cancelled 2010-12-14
All historical holders
Every license row we've seen with the callsign N4JCK, oldest first.
- Kay, Jason C NC2022-10-27 active
- —— → cancelled 1998-12-11