Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9EUH callsign genealogy
Currently held by GUTKNECHT, JAY S
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 KC9EUH's current licensee, walking backwards.
- GUTKNECHT, JAY SINgranted 1997-02-12cancelled 2003-09-27
- KA2JZJno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KC9EUH.
- GUTKNECHT, JAY SPAgranted 2008-10-15cancelled 2016-11-08