Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9OHS callsign genealogy
Currently held by WHITE, MARK B
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 N9OHS's current licensee, walking backwards.
- KB9GRUno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held N9OHS.
- WHITE, MARK BILgranted 2021-03-12