Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1KOO callsign genealogy
Currently held by VENTURA, CARLOS A
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 N1KOO's current licensee, walking backwards.
- VENTURA, CARLOS ATXgranted 2017-11-30cancelled 2020-05-05
Successor callsigns
Callsigns held now by people who previously held N1KOO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1KOO, oldest first.
- FOLEY, MICHAEL J MA1992-02-11 → cancelled 2004-02-12
- VENTURA, CARLOS A TX2020-05-05 active