Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3CDC callsign genealogy
Currently held by O'Ranger, John R
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 K3CDC's current licensee, walking backwards.
- O'RANGERS, JOHN RMDgranted 2023-03-15cancelled 2024-11-15
Successor callsigns
Callsigns held now by people who previously held K3CDC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3CDC, oldest first.
- O Rangers Jr, John J MD2010-11-02 → cancelled 2023-01-24
- O'Ranger, John R MD2024-11-15 active