Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4WAZ callsign genealogy
Currently held by DIAMANTES, THOMAS
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 N4WAZ's current licensee, walking backwards.
- Gustafson Jr, ArnoldFLgranted 2013-12-23cancelled 2015-07-03
Successor callsigns
Callsigns held now by people who previously held N4WAZ.
- DIAMANTES, THOMASOHgranted 2019-11-26
All historical holders
Every license row we've seen with the callsign N4WAZ, oldest first.
- DIAMANTES, THOMAS OH2003-12-19 → cancelled 2010-02-06
- Gustafson Jr, Arnold FL2025-07-01 active