Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KS4TN callsign genealogy
Currently held by STEPHENS, KENNETH 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 KS4TN's current licensee, walking backwards.
- STEPHENS, KENNETH HTNgranted 2017-06-06cancelled 2024-06-08
Successor callsigns
Callsigns held now by people who previously held KS4TN.
- LONDON, JOHN HNCgranted 2019-08-23
All historical holders
Every license row we've seen with the callsign KS4TN, oldest first.
- LONDON, JOHN H NC2012-06-01 → cancelled 2019-08-23
- STEPHENS, KENNETH H TN2024-06-08 active