Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KS4TD callsign genealogy
Currently held by BROWN JR, ROBERT H
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 KS4TD's current licensee, walking backwards.
- Dennis, SeanTNgranted 2017-11-10cancelled 2020-07-10
Successor callsigns
Callsigns held now by people who previously held KS4TD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KS4TD, oldest first.
- BROWN JR, ROBERT H TN2005-04-19 → cancelled 2017-04-20
- Dennis, Sean T TN2020-07-10 active