Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4SRC callsign genealogy
Currently held by San Lorenzo Ham Radio 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 KP4SRC's current licensee, walking backwards.
- WP4RUNcancelledSan Lorenzo Ham Radio ClubPRgranted 2021-05-24cancelled 2021-06-15
Successor callsigns
Callsigns held now by people who previously held KP4SRC.
No current licensee on record previously held this callsign.