Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4KTN callsign genealogy
Currently held by YORKE, SARAH C
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 N4KTN's current licensee, walking backwards.
- Bradley, Jeffrey KSCgranted 2025-07-24cancelled 2025-08-19
Successor callsigns
Callsigns held now by people who previously held N4KTN.
- MITCHELL, JOHN ATNgranted 2019-06-01
All historical holders
Every license row we've seen with the callsign N4KTN, oldest first.
- YORKE, SARAH C FL2004-03-05 → cancelled 2016-03-16
- MITCHELL, JOHN A TN2018-12-28 → cancelled 2019-06-01
- Bradley, Jeffrey K SC2025-08-19 active