Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DWQ callsign genealogy
Currently held by MARTIN SR, DAVID S
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 K4DWQ's current licensee, walking backwards.
- MARTIN SR, DAVID STNgranted 2008-03-05cancelled 2011-03-04
Successor callsigns
Callsigns held now by people who previously held K4DWQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4DWQ, oldest first.
- MARTIN, JACK R NC1988-03-22 → cancelled 2000-03-23
- MARTIN SR, DAVID S TN2021-01-20 active