Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6UDP callsign genealogy
Currently held by DUKELOW, THEODORE H
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 N6UDP's current licensee, walking backwards.
- Burton, Lee RVAgranted 2005-02-08cancelled 2008-07-15
Successor callsigns
Callsigns held now by people who previously held N6UDP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6UDP, oldest first.
- DUKELOW, THEODORE H CA1989-01-24 → cancelled 2001-01-25
- Burton, Lee R WA2018-04-19 active