Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6HKO callsign genealogy
Currently held by Green, Michael L
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 N6HKO's current licensee, walking backwards.
- Green, Michael LCAgranted 2020-02-07cancelled 2020-02-25
Successor callsigns
Callsigns held now by people who previously held N6HKO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6HKO, oldest first.
- GREEN, MICHAEL L CA1987-10-20 → cancelled 1999-10-21
- Green, Michael L CA2020-02-25 active