Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OPG callsign genealogy
Currently held by PRESTON JR, DAVID M
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 K4OPG's current licensee, walking backwards.
- Preston, David MKYgranted 2006-10-26cancelled 2016-03-29
Successor callsigns
Callsigns held now by people who previously held K4OPG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4OPG, oldest first.
- HARRIS, W H TN1997-05-15 → cancelled 2009-05-16
- PRESTON JR, DAVID M KY2026-01-30 active