@SainiS17141337 In a Pega 8.7.6 setup hosted on AWS Cloud, the default ports used by PRPC (Pega Rules Process Commander) depend on the services involved. Typically, Pega runs on a web application server like Tomcat or WebSphere, using port 8080 (HTTP) or 8443 (HTTPS). Additionally, PostgreSQL (if used) runs on 5432, ElasticSearch on 9300/9200, and Kafka (if part of the deployment) may use 9092. For internal communication and admin tools, ports like 2222 (SSH), 7000-7500 (Hazelcast clustering), and 5000+ (Stream service) may also be open. It's best to refer to the Pega Platform Deployment Guide or raise a support request for an official port list specific to your environment.