Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3ZX callsign genealogy
Currently held by WHITMORE, ROB A
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 N3ZX's current licensee, walking backwards.
- Zelenko, Stephen MPAgranted 2004-03-04cancelled 2007-03-27
Successor callsigns
Callsigns held now by people who previously held N3ZX.
All historical holders
Every license row we've seen with the callsign N3ZX, oldest first.
- WHITMORE, ROB A NC2000-10-14 → cancelled 2001-10-19
- Dorton, Denny H FL2004-03-06 → cancelled 2005-02-25
- Zelenko, Stephen M PA2017-01-19 active