Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG5OBI callsign genealogy
Currently held by DUNN, MARK 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 KG5OBI's current licensee, walking backwards.
- DUNN, MARK DTXgranted 2016-03-01cancelled 2016-04-29
Successor callsigns
Callsigns held now by people who previously held KG5OBI.
No current licensee on record previously held this callsign.