Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9CJR callsign genealogy
Currently held by Richtig, Calvin
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 K9CJR's current licensee, walking backwards.
- Richtig, CalvinWIgranted 2024-11-08cancelled 2025-02-21
Successor callsigns
Callsigns held now by people who previously held K9CJR.
No current licensee on record previously held this callsign.