Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4LWT callsign genealogy
Currently held by Thompson, Lawrence 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 N4LWT's current licensee, walking backwards.
- Thompson, Lawrence WFLgranted 2014-07-30cancelled 2022-08-16
Successor callsigns
Callsigns held now by people who previously held N4LWT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4LWT, oldest first.
- SHAPIRO, LLOYD S FL2005-03-24 → cancelled 2017-03-17
- Thompson, Lawrence W FL2022-08-16 active