Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NA7K callsign genealogy
Currently held by PLANT, 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 NA7K's current licensee, walking backwards.
- UPTON, RICHARD RMTgranted 2019-11-13cancelled 2019-12-24
Successor callsigns
Callsigns held now by people who previously held NA7K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NA7K, oldest first.
- PLANT, DAVID F WA2007-10-18 → cancelled 2019-12-04
- UPTON, RICHARD R MT2019-12-24 active