Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4RSC callsign genealogy
Currently held by SANTIAGO COLON, RUTH M
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 KP4RSC's current licensee, walking backwards.
- SANTIAGO COLON, RUTH MMAgranted 2018-04-12cancelled 2018-05-01
Successor callsigns
Callsigns held now by people who previously held KP4RSC.
No current licensee on record previously held this callsign.