Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6KDL callsign genealogy
Currently held by Knowlton, David L
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 K6KDL's current licensee, walking backwards.
- Knowlton, David LCAgranted 2010-03-18cancelled 2016-09-27
Successor callsigns
Callsigns held now by people who previously held K6KDL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6KDL, oldest first.
- MEDVED, JOHN CA1996-12-11 → cancelled 2008-12-12
- Knowlton, David L OR2026-08-04 active