Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4RIO callsign genealogy
Currently held by SEARS, ROBERT 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 N4RIO's current licensee, walking backwards.
- Aponte, Maria AVAgranted 2014-05-15cancelled 2014-06-06
Successor callsigns
Callsigns held now by people who previously held N4RIO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4RIO, oldest first.
- SEARS, ROBERT L KY1998-02-25 → cancelled 2010-02-26
- Aponte, Maria A VA2024-07-23 active