Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NA5DX callsign genealogy
Currently held by BREEDEN, WILLIAM B
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 NA5DX's current licensee, walking backwards.
- BREEDEN, WILLIAM BMSgranted 2007-04-03cancelled 2008-11-25
Successor callsigns
Callsigns held now by people who previously held NA5DX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NA5DX, oldest first.
- ROHRBACH, WILLIAM B NM1997-09-17 → cancelled 1997-11-22
- BREEDEN, WILLIAM B MS2018-11-10 active