Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KL4SD callsign genealogy
Currently held by SKINNY DICKS CONTEST 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 KL4SD's current licensee, walking backwards.
- WL7CXPcancelledSKINNY DICKS CONTEST CLUBAKgranted 2016-02-11cancelled 2016-04-22
Successor callsigns
Callsigns held now by people who previously held KL4SD.
No current licensee on record previously held this callsign.