Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KL3OC callsign genealogy
Currently held by Cooper, Matthew
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 KL3OC's current licensee, walking backwards.
- Cooper, MatthewAKgranted 2010-11-12cancelled 2011-10-18
Successor callsigns
Callsigns held now by people who previously held KL3OC.
No current licensee on record previously held this callsign.