Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1KDM callsign genealogy
Currently held by MARKING, DAVID F
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 K1KDM's current licensee, walking backwards.
- MARKING, DAVID FTXgranted 2011-10-24cancelled 2013-05-17
Successor callsigns
Callsigns held now by people who previously held K1KDM.
- MARKING, DAVID FTXgranted 2024-12-12