Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4CR callsign genealogy
Currently held by Ruetten, Christiane
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 KK4CR's current licensee, walking backwards.
- Ruetten, ChristianeCAgranted 2014-05-29cancelled 2014-06-17
Successor callsigns
Callsigns held now by people who previously held KK4CR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK4CR, oldest first.
- MC LEAN, RONALD I FL1991-10-22 → cancelled 2003-10-23
- Ruetten, Christiane TN2024-06-13 active