Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0DUX callsign genealogy
Currently held by Estes, Matthew F
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 K0DUX's current licensee, walking backwards.
- Estes, Matthew FORgranted 2021-02-08cancelled 2021-03-09
Successor callsigns
Callsigns held now by people who previously held K0DUX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0DUX, oldest first.
- TAYLOR, ROBERT D KS2008-08-12 → cancelled 2019-12-12
- Estes, Matthew F OR2021-03-09 active