Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NA3TO callsign genealogy
Currently held by DUFF, HUGH A
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 NA3TO's current licensee, walking backwards.
- DUFF, HUGH ANYgranted 2007-06-07cancelled 2008-06-24
Successor callsigns
Callsigns held now by people who previously held NA3TO.
No current licensee on record previously held this callsign.