Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DLM callsign genealogy
Currently held by MARTIN, 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 K4DLM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K4DLM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4DLM, oldest first.
- WILLIAMS, M RAY FL1987-12-29 → cancelled 1999-12-30
- MARTIN, DAVID L GA2023-12-30 active