Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4RTX callsign genealogy
Currently held by O'Kelley, Ryan M
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 N4RTX's current licensee, walking backwards.
- O'Kelley, Ryan MNCgranted 2018-10-18cancelled 2018-11-20
Successor callsigns
Callsigns held now by people who previously held N4RTX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4RTX, oldest first.
- TAYLOR, JORGE A FL1999-05-19 → cancelled 2011-05-20
- O'Kelley, Ryan M NC2018-11-20 active