Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NA0K callsign genealogy
Currently held by Turner, Mark 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 NA0K's current licensee, walking backwards.
- Turner, Mark FCOgranted 2018-11-02cancelled 2019-02-26
Successor callsigns
Callsigns held now by people who previously held NA0K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NA0K, oldest first.
- MELLINGER, JACK C AZ2007-01-13 → cancelled 2019-02-12
- Turner, Mark F NC2019-02-26 active