Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9MRO callsign genealogy
Currently held by ORMISTON, MICHAEL R
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 W9MRO's current licensee, walking backwards.
- Ovshinsky, Noah KWIgranted 2019-03-14cancelled 2023-11-25
Successor callsigns
Callsigns held now by people who previously held W9MRO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9MRO, oldest first.
- ORMISTON, MICHAEL R IN2006-01-27 → cancelled 2018-01-30
- Ovshinsky, Noah K WI2023-11-25 active