Confidence: Medium · Source: FCC ULS · As of 2026-10-27
NA4GG callsign genealogy
Currently held by Shull, Mark C
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 NA4GG's current licensee, walking backwards.
- Shull, Mark CNCgranted 2025-11-22cancelled 2026-09-28
Successor callsigns
Callsigns held now by people who previously held NA4GG.
No current licensee on record previously held this callsign.