Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0QCO callsign genealogy
Currently held by CHESTNUT, JOHN K
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 N0QCO's current licensee, walking backwards.
- CHESTNUT, JOHN KMOgranted 2016-11-28cancelled 2016-12-17
Successor callsigns
Callsigns held now by people who previously held N0QCO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0QCO, oldest first.
- CHESTNUT, JOHN K KS1997-03-21 → cancelled 2009-03-25
- CHESTNUT, JOHN K MO2016-12-17 active