Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4RAD callsign genealogy
Currently held by LOPEZ SANTIAGO, EDWIN J
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 KP4RAD's current licensee, walking backwards.
- LOPEZ SANTIAGO, EDWIN JPRgranted 2018-07-16cancelled 2019-06-11
Successor callsigns
Callsigns held now by people who previously held KP4RAD.
- LOPEZ SANTIAGO, EDWIN JPRgranted 2026-04-21