Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5OOP callsign genealogy
Currently held by Patterson, John D
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 K5OOP's current licensee, walking backwards.
- Patterson, John DTXgranted 2019-05-20cancelled 2019-07-30
Successor callsigns
Callsigns held now by people who previously held K5OOP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5OOP, oldest first.
- GOODMAN SR, DAN J TX1994-07-18 → cancelled 2006-07-19
- Patterson, John D TX2019-07-30 active