Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4NZY callsign genealogy
Currently held by HAMILTON, DAVID L
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 W4NZY's current licensee, walking backwards.
- Riggall, Nicholas SFLgranted 2025-09-09cancelled 2025-09-27
Successor callsigns
Callsigns held now by people who previously held W4NZY.
- HAMILTON, DAVID LKYgranted 2018-04-24
All historical holders
Every license row we've seen with the callsign W4NZY, oldest first.
- HAMILTON, DAVID L KY2018-03-29 → cancelled 2018-04-24
- Riggall, Nicholas S FL2025-09-27 active