port number - More

Common IP Port Numbers20 - FTP (File Transfer Protocol)21 - FTP (File Transfer Protocol)23 - Telnet25 - SMTP (Simple Mail Transfer Protocol)53 - DNS (Domain Name Server)70 - Gopher80 - HTTP (Hypertext Transfer Protocol)107- Remote Telnet Service109- POP2 (Post Office Protocol version 2)110- POP3 (Post Office Protocol version 3)119- NNTP (Network News Transfer Protocol)137- WINS (Windows Internet Naming Service)143- IMAP4 (Interactive Mail Access Protocol 4)194- IRC (Internet Relay Chat)220- IMAP3 (Interactive Mail Access Protocol 3)389- LDAP (Lightweight Directory Access Protocol)443- SYSLOG514- HTTPS (HTTP running over secure sockets)540- UUCP (UNIX to UNIX Copy)