Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0ZBY callsign genealogy
Currently held by Wolford, Dwayne D
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 N0ZBY's current licensee, walking backwards.
- Wolford, Dwayne DNEgranted 2011-04-08cancelled 2011-12-24
Successor callsigns
Callsigns held now by people who previously held N0ZBY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0ZBY, oldest first.
- ZYLLA, LEONARD R MN1993-10-12 → cancelled 2005-10-13
- Wolford, Dwayne D NE2021-12-10 active