Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4LDO callsign genealogy
Currently held by Dudley, Adam C
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 K4LDO's current licensee, walking backwards.
- Dudley, Adam CVAgranted 2007-03-23cancelled 2008-02-22
Successor callsigns
Callsigns held now by people who previously held K4LDO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4LDO, oldest first.
- ELLIOTT SR, WILLIAM Y AL1995-01-26 → cancelled 2007-01-27
- Dudley, Adam C VA2018-01-29 active