Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4STH callsign genealogy
Currently held by ROBERTSON, BARBARA A
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 N4STH's current licensee, walking backwards.
- Thomas, Sean CTNgranted 2021-04-26cancelled 2021-05-14
Successor callsigns
Callsigns held now by people who previously held N4STH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4STH, oldest first.
- ROBERTSON, BARBARA A TN2001-01-03 → cancelled 2013-02-20
- Thomas, Sean TN2021-05-14 active