Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0HIO callsign genealogy
Currently held by Koerner, David
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 N0HIO's current licensee, walking backwards.
- Koerner, DavidMOgranted 2003-09-06cancelled 2008-05-06
Successor callsigns
Callsigns held now by people who previously held N0HIO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0HIO, oldest first.
- CALDWELL, CUBA I KS1996-04-15 → cancelled 2008-04-16
- Koerner, David CT2018-02-17 active