Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4KPI callsign genealogy
Currently held by DE CARVALHO, ROBERT
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 K4KPI's current licensee, walking backwards.
- DE CARVALHO, ROBERTTNgranted 2017-11-09cancelled 2020-09-29
Successor callsigns
Callsigns held now by people who previously held K4KPI.
No current licensee on record previously held this callsign.