Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4ABC callsign genealogy
Currently held by SANTOS-PENA, PEDRO 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 KP4ABC's current licensee, walking backwards.
- Santos-Pena, Pedro JPRgranted 2001-11-19cancelled 2002-08-16
Successor callsigns
Callsigns held now by people who previously held KP4ABC.
No current licensee on record previously held this callsign.