Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K3SRE callsign genealogy
Currently held by LONG III, WILLIAM W
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 K3SRE's current licensee, walking backwards.
- Grove Jr, James WFLgranted 2018-01-24cancelled 2018-02-13
Successor callsigns
Callsigns held now by people who previously held K3SRE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3SRE, oldest first.
- LONG III, WILLIAM W MD2004-02-17 → cancelled 2016-03-16
- Grove Jr, James W FL2018-02-13 active