TCP/UDP Port Reference
Common port numbers, protocols, and the services associated with them.
77 of 77 · 0–1023 well-known · 1024–49151 registered · 49152–65535 dynamic
| Port | Protocol | Service | Description | Range |
|---|---|---|---|---|
| 20 | tcp | ftp-data | FTP data transfer | well-known |
| 21 | tcp | ftp | FTP control | well-known |
| 22 | tcp | ssh | Secure Shell / SCP / SFTP | well-known |
| 23 | tcp | telnet | Telnet (insecure) | well-known |
| 25 | tcp | smtp | SMTP — mail relay | well-known |
| 53 | tcp/udp | dns | Domain Name System | well-known |
| 67 | udp | dhcp | DHCP server | well-known |
| 68 | udp | dhcp | DHCP client | well-known |
| 69 | udp | tftp | Trivial File Transfer | well-known |
| 80 | tcp | http | HTTP | well-known |
| 88 | tcp/udp | kerberos | Kerberos authentication | well-known |
| 110 | tcp | pop3 | Post Office Protocol 3 | well-known |
| 111 | tcp/udp | rpcbind | Sun ONC/RPC portmapper | well-known |
| 119 | tcp | nntp | Network News Transfer | well-known |
| 123 | udp | ntp | Network Time Protocol | well-known |
| 135 | tcp | msrpc | Microsoft RPC | well-known |
| 137 | udp | netbios-ns | NetBIOS Name Service | well-known |
| 138 | udp | netbios-dgm | NetBIOS Datagram | well-known |
| 139 | tcp | netbios-ssn | NetBIOS Session | well-known |
| 143 | tcp | imap | IMAP | well-known |
| 161 | udp | snmp | SNMP | well-known |
| 162 | udp | snmptrap | SNMP trap | well-known |
| 179 | tcp | bgp | Border Gateway Protocol | well-known |
| 194 | tcp | irc | Internet Relay Chat | well-known |
| 389 | tcp/udp | ldap | LDAP | well-known |
| 443 | tcp | https | HTTPS | well-known |
| 445 | tcp | smb | SMB / CIFS | well-known |
| 465 | tcp | smtps | SMTP over TLS (legacy) | well-known |
| 514 | udp | syslog | Syslog | well-known |
| 515 | tcp | lpd | Line Printer Daemon | well-known |
| 587 | tcp | submission | SMTP submission | well-known |
| 631 | tcp/udp | ipp | Internet Printing Protocol | well-known |
| 636 | tcp | ldaps | LDAP over TLS | well-known |
| 853 | tcp | dns-over-tls | DNS over TLS | well-known |
| 873 | tcp | rsync | rsync | well-known |
| 989 | tcp | ftps-data | FTPS data | well-known |
| 990 | tcp | ftps | FTPS control | well-known |
| 993 | tcp | imaps | IMAP over TLS | well-known |
| 995 | tcp | pop3s | POP3 over TLS | well-known |
| 1080 | tcp | socks | SOCKS proxy | registered |
| 1194 | udp | openvpn | OpenVPN | registered |
| 1433 | tcp | mssql | Microsoft SQL Server | registered |
| 1521 | tcp | oracle | Oracle Database | registered |
| 1701 | udp | l2tp | L2TP VPN | registered |
| 1723 | tcp | pptp | PPTP VPN | registered |
| 1812 | udp | radius | RADIUS authentication | registered |
| 2049 | tcp/udp | nfs | Network File System | registered |
| 2375 | tcp | docker | Docker daemon (insecure) | registered |
| 2376 | tcp | docker-tls | Docker daemon (TLS) | registered |
| 3000 | tcp | node | Common Node.js dev server | registered |
| 3306 | tcp | mysql | MySQL / MariaDB | registered |
| 3389 | tcp | rdp | Remote Desktop Protocol | registered |
| 4444 | tcp | metasploit | Common Meterpreter / dev | registered |
| 5000 | tcp | upnp | UPnP / Flask dev server | registered |
| 5060 | tcp/udp | sip | SIP signaling | registered |
| 5432 | tcp | postgresql | PostgreSQL | registered |
| 5672 | tcp | amqp | AMQP / RabbitMQ | registered |
| 5900 | tcp | vnc | VNC display 0 | registered |
| 5984 | tcp | couchdb | CouchDB | registered |
| 6379 | tcp | redis | Redis | registered |
| 6443 | tcp | kubernetes-api | Kubernetes API server | registered |
| 7000 | tcp | cassandra | Cassandra inter-node | registered |
| 7001 | tcp | cassandra-tls | Cassandra inter-node TLS | registered |
| 8000 | tcp | http-alt | Common dev / Django | registered |
| 8080 | tcp | http-proxy | HTTP alternate / proxy | registered |
| 8081 | tcp | http-alt | HTTP alternate | registered |
| 8443 | tcp | https-alt | HTTPS alternate | registered |
| 8888 | tcp | http-alt | Common dev (Jupyter) | registered |
| 9000 | tcp | php-fpm | PHP-FPM / SonarQube / dev | registered |
| 9090 | tcp | prometheus | Prometheus / dev | registered |
| 9200 | tcp | elasticsearch | Elasticsearch HTTP | registered |
| 9300 | tcp | elasticsearch-tx | Elasticsearch transport | registered |
| 9418 | tcp | git | Git protocol | registered |
| 9999 | tcp | abyss | Common dev / Abyss | registered |
| 11211 | tcp/udp | memcached | Memcached | registered |
| 25565 | tcp | minecraft | Minecraft Java server | registered |
| 27017 | tcp | mongodb | MongoDB | registered |