Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NB4S callsign genealogy
Currently held by WRIGHT, THOMAS L
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 NB4S's current licensee, walking backwards.
- BAXTER, JOHN DSCgranted 2015-09-29cancelled 2020-09-19
Successor callsigns
Callsigns held now by people who previously held NB4S.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NB4S, oldest first.
- WRIGHT, THOMAS L SC2015-09-15 → cancelled 2018-08-31
- BAXTER, JOHN D SC2020-09-19 active