Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5TWM callsign genealogy
Currently held by MASSENGILL, TROY W
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 N5TWM's current licensee, walking backwards.
- MASSENGILL, TROY WTXgranted 1996-12-09cancelled 2006-06-03
Successor callsigns
Callsigns held now by people who previously held N5TWM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5TWM, oldest first.
- WILLHOITE, DARVIN L TX1991-05-28 → cancelled 2003-05-29
- MASSENGILL, TROY W TX2016-06-28 active