Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5GDD callsign genealogy
Currently held by THOMPSON JR, WILLIAM J
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 N5GDD's current licensee, walking backwards.
- JOHNSON, JIMMY LTXgranted 2016-02-01cancelled 2018-02-16
Successor callsigns
Callsigns held now by people who previously held N5GDD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5GDD, oldest first.
- THOMPSON JR, WILLIAM J LA1998-05-11 → cancelled 2010-05-12
- JOHNSON, JIMMY L TX2018-02-16 active