Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0OOO callsign genealogy
Currently held by SIMBECK JR, FRANKLIN L
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 KC0OOO's current licensee, walking backwards.
- SIMBECK JR, FRANKLIN LCOgranted 1992-12-29cancelled 2002-12-04
Successor callsigns
Callsigns held now by people who previously held KC0OOO.
No current licensee on record previously held this callsign.