Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6DEF callsign genealogy
Currently held by Oborne, Laurance E
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 K6DEF's current licensee, walking backwards.
- HONG, DAVID CCAgranted 2025-02-12cancelled 2025-03-04
Successor callsigns
Callsigns held now by people who previously held K6DEF.
- Gray, DanAZgranted 2020-11-24
All historical holders
Every license row we've seen with the callsign K6DEF, oldest first.
- Oborne, Laurance E CA2003-02-26 → cancelled 2015-05-27
- Gray, Dan AZ2020-07-07 → cancelled 2020-11-24
- HONG, DAVID C CA2025-03-04 active