Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1HAX callsign genealogy
Currently held by IZZO, DONALD 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 N1HAX's current licensee, walking backwards.
- Caston, Rodney LNCgranted 2018-11-16cancelled 2018-12-04
Successor callsigns
Callsigns held now by people who previously held N1HAX.
- IZZO, DONALD LCTgranted 2017-08-23
All historical holders
Every license row we've seen with the callsign N1HAX, oldest first.
- IZZO, DONALD L CT2003-01-27 → cancelled 2007-11-16
- Caston, Rodney L WA2018-12-04 active