Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4ZKD callsign genealogy
Currently held by Martin, Christopher 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 K4ZKD's current licensee, walking backwards.
- Martin, Christopher LTNgranted 2024-12-10cancelled 2026-02-10
Successor callsigns
Callsigns held now by people who previously held K4ZKD.
No current licensee on record previously held this callsign.