Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NA7XX callsign genealogy
Currently held by TTT Contest Club
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 NA7XX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NA7XX.
No current licensee on record previously held this callsign.