Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9IO callsign genealogy
Currently held by MELHORN, CLAY E
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 N9IO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N9IO.
No current licensee on record previously held this callsign.