Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4FA callsign genealogy
Currently held by Horowitz, Martin H
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 N4FA's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N4FA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4FA, oldest first.
- SMITH, ELLIS I FL1996-02-27 → cancelled 2000-10-31
- Horowitz, Martin H FL2005-03-15 → cancelled 2013-08-16
- Melnik, Richard T FL2025-06-24 active