Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6MKO callsign genealogy
Currently held by OKUBO, MICHAEL 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 N6MKO's current licensee, walking backwards.
- OKUBO, MICHAEL KCAgranted 2022-11-22cancelled 2024-06-21
Successor callsigns
Callsigns held now by people who previously held N6MKO.
All historical holders
Every license row we've seen with the callsign N6MKO, oldest first.
- OKUBO, MICHAEL K CA2022-11-22 → cancelled 2024-05-13
- OKUBO, MICHAEL K CA2024-06-21 → cancelled 2025-07-29