Well-Known TCP Port Numbers

In TCP/IP and UDP networks, a port is an endpoint to a logical connection and the way a client program specifies a specific server program on a computer in a network. This list of well-known port numbers specifies the port used by the server process as its contact port.

 

In TCP/IP and UDP networks, a port is an endpoint to a logical connection and the way a client program specifies a specific server program on a computer in a network. Some ports have numbers that are pre-assigned to them by the IANA, and these are called the "well-known ports" which are specified in RFC 1700. Port numbers range from 0 to 65536, but only ports numbers 0 to 1024 are reserved for privileged services and designated as well-known ports. This list of well-known port numbers specifies the port used by the server process as its contact port. Port Number Description 1 TCP Port Service Multiplexer (TCPMUX) 5 Remote Job Entry (RJE) 7 ECHO 18 Message Send Protocol (MSP) 20 FTP -- Data 21 FTP -- Control 22 SSH Remote Login Protocol 23 Telnet 25 Simple Mail Transfer Protocol (SMTP) 29 MSG ICP 37 Time 42 Host Name Server (Nameserv) 43 WhoIs 49 Login Host Protocol (Login) 53 Domain Name System (DNS) 69 Trivial File Transfer Protocol (TFTP) 70 Gopher Services 79 Finger 80 HTTP 103 X.400 Standard 108 SNA Gateway Access Server 109 POP2 110 POP3 115 Simple File Transfer Protocol (SFTP) 118 SQL Services 119 Newsgroup (NNTP) 137 NetBIOS Name Service 139 NetBIOS Datagram Service 143 Interim Mail Access Protocol (IMAP) 150 NetBIOS Session Service 156 SQL Server 161 SNMP 179 Border Gateway Protocol (BGP) 190 Gateway Access Control Protocol (GACP) 194 Internet Relay Chat (IRC) 197 Directory Location Service (DLS) 389 Lightweight Directory Access Protocol (LDAP) 396 Novell Netware over IP 443 HTTPS 444 Simple Network Paging Protocol (SNPP) 445 Microsoft-DS 458 Apple QuickTime 546 DHCP Client 547 DHCP Server 563 SNEWS 569 MSN 1080 Socks For further information, see RFC 1700. Databases 3306 MySQL 1433 MS SQL Server 5432 PostgreSQL Remote Access - Graphical 3389 MS Remote Desktop 5800 VNC-HTTP 5900 VNC Remote Access - Console 22 SSH 23 Telnet 512 Rexec 513 Rlogin 514 RSH Remote Data Transfer & Management 20 FTP Data 21 FTP 69 TFTP 2049 NFS Directory Service 389 LDAP 636 LDAP Secure Web 80 HTTP 443 HTTPS 3128 Squid Web Proxy Mail & Chat 25 SMTP 110 POP3 995 POP3S 143 IMAP 993 IMAPS 5222 Jabber 5223 Jabber SSL Infrastructure Management 53 DNS 1512 WINS 67 DHCP Server 68 DHCP Client 123/UDP NTP 161 SNMP