Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1MKX callsign genealogy
Currently held by Dulong, Mark
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 K1MKX's current licensee, walking backwards.
- Dulong, MarkNHgranted 2018-11-15cancelled 2019-03-26
Successor callsigns
Callsigns held now by people who previously held K1MKX.
No current licensee on record previously held this callsign.