Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4MCD callsign genealogy
Currently held by DELGADO RIVERA, MARIA C
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 KP4MCD's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KP4MCD.
No current licensee on record previously held this callsign.