Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5GTX callsign genealogy
Currently held by MCCARTHY JR, WILLIAM 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 N5GTX's current licensee, walking backwards.
- MCCARTHY JR, WILLIAM MTXgranted 2022-06-16cancelled 2024-03-09
Successor callsigns
Callsigns held now by people who previously held N5GTX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5GTX, oldest first.
- ARMENTOR, TEX M LA2010-12-04 → cancelled 2023-02-22
- MCCARTHY JR, WILLIAM M TX2024-03-09 active