Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9IOR callsign genealogy
Currently held by MATHIS, DAVID 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 N9IOR's current licensee, walking backwards.
- KB9CHVno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held N9IOR.
- MATHIS, DAVID KILgranted 2020-06-30