Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4DSI callsign genealogy
Currently held by DATA SOLUTIONS WIRELESS CLUB
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 W4DSI's current licensee, walking backwards.
- KJ4HRCcancelledDATA SOLUTIONS WIRELESS CLUBKYgranted 2008-11-06cancelled 2008-11-25
Successor callsigns
Callsigns held now by people who previously held W4DSI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4DSI, oldest first.
- HAMILTON, LAWRENCE L FL1989-03-14 → cancelled 2001-03-15
- DATA SOLUTIONS WIRELESS CLUB KY2019-02-06 active