Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4SJU callsign genealogy
Currently held by Miranda, Wilfredo
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 KP4SJU's current licensee, walking backwards.
- Miranda, WilfredoPRgranted 2021-11-30cancelled 2021-12-18
Successor callsigns
Callsigns held now by people who previously held KP4SJU.
- Miranda, WilfredoNCgranted 2022-03-15cancelled 2023-01-21