Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4NSS callsign genealogy
Currently held by SUMNER, KENNETH E
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 K4NSS's current licensee, walking backwards.
- SUMNER, KENNETH EGAgranted 2014-01-16cancelled 2015-06-30
Successor callsigns
Callsigns held now by people who previously held K4NSS.
- DYER, ROBERT EFLgranted 2009-09-04cancelled 2021-11-17
All historical holders
Every license row we've seen with the callsign K4NSS, oldest first.
- DYER, ROBERT E FL1999-11-16 → cancelled 2009-09-04
- SUMNER, KENNETH E TN2025-04-11 active