Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9ZGR callsign genealogy
Currently held by Kring, Judson R
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 KC9ZGR's current licensee, walking backwards.
- Kring, Judson RINgranted 2013-06-25cancelled 2013-06-28
Successor callsigns
Callsigns held now by people who previously held KC9ZGR.
- Kring, Judson RINgranted 2024-07-16