Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO5DX callsign genealogy
Currently held by Carty, John W
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 KO5DX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KO5DX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KO5DX, oldest first.
- WISE, LARRY J TX2009-10-27 → cancelled 2016-12-25
- Carty, John W TX2024-08-23 active