Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7JHK callsign genealogy
Currently held by Kainrath, John 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 K7JHK's current licensee, walking backwards.
- Kainrath, John HAZgranted 2002-06-06cancelled 2007-02-24
Successor callsigns
Callsigns held now by people who previously held K7JHK.
No current licensee on record previously held this callsign.