Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3JO callsign genealogy
Currently held by DERIC, VELIMIR
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 K3JO's current licensee, walking backwards.
- DERIC, VELIMIRTXgranted 2006-09-07cancelled 2008-06-06
Successor callsigns
Callsigns held now by people who previously held K3JO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3JO, oldest first.
- OWSIK, JULIUS J PA1997-08-07 → cancelled 1999-05-06
- DERIC, VELIMIR MA2018-05-16 active