Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NT4TT callsign genealogy
Currently held by Thomas Jr, Claude P
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 NT4TT's current licensee, walking backwards.
- Thomas Jr, Claude PFLgranted 2010-02-09cancelled 2010-04-16
Successor callsigns
Callsigns held now by people who previously held NT4TT.
- CAMPBELL, EDWARD LFLgranted 2017-01-05cancelled 2018-01-23
All historical holders
Every license row we've seen with the callsign NT4TT, oldest first.
- CAMPBELL, EDWARD L ID1998-06-02 → cancelled 2007-03-27
- Thomas Jr, Claude P FL2020-04-07 active