No, but you can do this at the firewall. Unless port 1500 is open and accepting connections for some reason, there should be no reason to be concerned with it. A properly set firewall will take care of bad requests to closed ports. Sounds like your not the admin of the server, so this link would be no good to you but this is a very good firewall.
ConfigServer Security & Firewall
Banning an IP from within your cPanel will block that IP to any part of your site at yourdomain.com. That block is generated from the .htacess file in the public_html directory of your account. When you add it in cPanel it gets written to the .htaccess
HTH