Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4RSP callsign genealogy
Currently held by SANTIAGO, RAMON A
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 KP4RSP's current licensee, walking backwards.
- SANTIAGO, RAMON APRgranted 2020-11-30cancelled 2020-12-18
Successor callsigns
Callsigns held now by people who previously held KP4RSP.
No current licensee on record previously held this callsign.