Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4HFO callsign genealogy
Currently held by RODRIGUEZ, SECUNDINO
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 N4HFO's current licensee, walking backwards.
- SUDDERTH, JEFFREY SNCgranted 2012-02-27cancelled 2016-08-23
Successor callsigns
Callsigns held now by people who previously held N4HFO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4HFO, oldest first.
- RODRIGUEZ, SECUNDINO FL1996-11-04 → cancelled 2008-11-05
- SUDDERTH, JEFFREY S NC2026-07-25 active