Port Number Reference

Reference guide for well-known TCP/UDP port numbers.

AllTCPUDP

Well Known (0-1023)

24

Registered (1024-49151)

12

Total Shown

36

Port	Protocol	Service	Description
20	TCP	FTP Data	File Transfer Protocol data transfer
21	TCP	FTP Control	File Transfer Protocol command control
22	TCP	SSH	Secure Shell encrypted remote login
23	TCP	Telnet	Unencrypted text communications
25	TCP	SMTP	Simple Mail Transfer Protocol
53	TCP/UDP	DNS	Domain Name System
67	UDP	DHCP Server	Dynamic Host Configuration Protocol
68	UDP	DHCP Client	Dynamic Host Configuration Protocol client
69	UDP	TFTP	Trivial File Transfer Protocol
80	TCP	HTTP	Hypertext Transfer Protocol
110	TCP	POP3	Post Office Protocol v3
123	UDP	NTP	Network Time Protocol
143	TCP	IMAP	Internet Message Access Protocol
161	UDP	SNMP	Simple Network Management Protocol
162	UDP	SNMP Trap	SNMP notifications/traps
389	TCP	LDAP	Lightweight Directory Access Protocol
443	TCP	HTTPS	HTTP over TLS/SSL
445	TCP	SMB	Server Message Block / Microsoft-DS
465	TCP	SMTPS	SMTP over SSL
514	UDP	Syslog	System logging protocol
587	TCP	SMTP Submission	Email message submission
636	TCP	LDAPS	LDAP over SSL
993	TCP	IMAPS	IMAP over SSL
995	TCP	POP3S	POP3 over SSL
1433	TCP	MS SQL	Microsoft SQL Server
1521	TCP	Oracle DB	Oracle database listener
3306	TCP	MySQL	MySQL database
3389	TCP	RDP	Remote Desktop Protocol
5432	TCP	PostgreSQL	PostgreSQL database
5672	TCP	AMQP	Advanced Message Queuing Protocol
5900	TCP	VNC	Virtual Network Computing
6379	TCP	Redis	Redis key-value store
8080	TCP	HTTP Alt	HTTP alternative / proxy
8443	TCP	HTTPS Alt	HTTPS alternative
9200	TCP	Elasticsearch	Elasticsearch REST API
27017	TCP	MongoDB	MongoDB database