Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9WUM callsign genealogy
Currently held by HARDMAN, MARK A
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 N9WUM's current licensee, walking backwards.
- KA9AUJno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held N9WUM.
- HARDMAN, MARK AINgranted 2025-02-19