The addresses for accessing the services of the idCAT Registration Entity are as follows:

service environment domain name New service IP Ports to be kept open Description
idCAT service production 80, 443 and 4443 Website of the operators of the idCAT registration entities
Time validation and authority services production 80 OCSP Validation Service

We recommend that you provide this information to the IT technicians or the people who are in charge of systems within the idCAT Registration Entity so that, in the event that any firewall or communications element that filters communications has it to external IP addresses, it must be configured to allow access to these IPs and ports indicated.