Port Number Look Up Print E-mail

Port Number Look Up (formally What's That Port) is now open to non-registered users! We boast one of the largest port databases online. Many ports are flagged for malicious use. Just enter the port number to look up and press 'Request' for a detailed port description below.

If you don't find a port in our database you can submit it for our review and possibly have it added. If we add your port we will give you an honorable mention here.

Click here for current contributors!
Known Ports
Port Number: