Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7DX callsign genealogy
Currently held by PALM, Stephen R
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 K7DX's current licensee, walking backwards.
- PALM, Stephen RCAgranted 2024-12-21cancelled 2025-04-25
Successor callsigns
Callsigns held now by people who previously held K7DX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7DX, oldest first.
- WARREN, LEE E AZ1997-11-13 → cancelled 2003-12-15
- Wolfson, Mitchell B FL2015-12-29 → cancelled 2023-04-04
- PALM, Stephen R CA2025-04-25 active