Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9CR callsign genealogy
Currently held by RILEY, CLIFFORD K
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 K9CR's current licensee, walking backwards.
- Colburn, Daniel LWIgranted 2006-01-09cancelled 2006-02-22
Successor callsigns
Callsigns held now by people who previously held K9CR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9CR, oldest first.
- RILEY, CLIFFORD K IN1995-01-25 → cancelled 2003-03-26
- Colburn, Daniel L WI2016-02-10 active