Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4RSR callsign genealogy
Currently held by Santiago Rivera, Ramon E
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 KP4RSR's current licensee, walking backwards.
- Santiago Rivera, Ramon EPRgranted 2016-06-06cancelled 2021-10-05
Successor callsigns
Callsigns held now by people who previously held KP4RSR.
No current licensee on record previously held this callsign.