Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0JHN callsign genealogy
Currently held by Nonnast, Joseph H
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 K0JHN's current licensee, walking backwards.
- Nonnast, Joseph HCOgranted 2011-04-12cancelled 2011-06-01
Successor callsigns
Callsigns held now by people who previously held K0JHN.
No current licensee on record previously held this callsign.