Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4WSP callsign genealogy
Currently held by SILVA PEREZ, WILLIAM L
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 KP4WSP's current licensee, walking backwards.
- SILVA PEREZ, WILLIAMPRgranted 2020-03-02cancelled 2024-10-29
Successor callsigns
Callsigns held now by people who previously held KP4WSP.
No current licensee on record previously held this callsign.