Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1SDL callsign genealogy
Currently held by Leicester, Simon D
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 W1SDL's current licensee, walking backwards.
- Leicester, Simon DTXgranted 2021-12-06cancelled 2022-01-22
Successor callsigns
Callsigns held now by people who previously held W1SDL.
No current licensee on record previously held this callsign.