Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9KEY callsign genealogy
Currently held by ISAAC, EMAD S
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 N9KEY's current licensee, walking backwards.
- ISAAC, EMAD SILgranted 2017-01-11cancelled 2017-01-31
Successor callsigns
Callsigns held now by people who previously held N9KEY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9KEY, oldest first.
- MATTHEWS, DAVID E IN1990-10-09 → cancelled 2002-10-10
- ISAAC, EMAD S IL2017-01-31 active