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TCP Port Reference

Network & Ops · Free Online Tool

Query common port-to-service mappings (80/443/3306…).

By EZ4Code TeamLast updated: 2026-10-29

Port	Protocol	TCP	UDP	Description
20	FTP-DATA	✓	—	File Transfer Protocol (data)
21	FTP	✓	—	File Transfer Protocol (control)
22	SSH	✓	—	Secure Shell
23	TELNET	✓	—	Telnet
25	SMTP	✓	—	Simple Mail Transfer Protocol
53	DNS	✓	✓	Domain Name System
67	DHCP	—	✓	DHCP (server)
68	DHCP	—	✓	DHCP (client)
69	TFTP	—	✓	Trivial File Transfer Protocol
80	HTTP	✓	—	Hypertext Transfer Protocol
110	POP3	✓	—	Post Office Protocol v3
119	NNTP	✓	—	Network News Transfer Protocol
123	NTP	—	✓	Network Time Protocol
143	IMAP	✓	—	Internet Message Access Protocol
161	SNMP	—	✓	Simple Network Management Protocol
162	SNMP-TRAP	—	✓	SNMP Trap
389	LDAP	✓	✓	Lightweight Directory Access Protocol
443	HTTPS	✓	—	HTTP over TLS/SSL
445	SMB	✓	—	Server Message Block (Microsoft-DS)
465	SMTPS	✓	—	SMTP over SSL
514	SYSLOG	—	✓	Syslog
587	SMTP-SUBMIT	✓	—	SMTP submission
636	LDAPS	✓	—	LDAP over SSL
853	DoT	✓	—	DNS over TLS
989	FTPS-DATA	✓	—	FTP over SSL (data)
990	FTPS	✓	—	FTP over SSL (control)
993	IMAPS	✓	—	IMAP over SSL
995	POP3S	✓	—	POP3 over SSL
1080	SOCKS	✓	—	SOCKS proxy
1194	OpenVPN	✓	✓	OpenVPN
1433	MSSQL	✓	—	Microsoft SQL Server
1521	Oracle	✓	—	Oracle DB
1723	PPTP	✓	—	Point-to-Point Tunneling Protocol
2049	NFS	✓	✓	Network File System
3306	MySQL	✓	—	MySQL database
3389	RDP	✓	—	Remote Desktop Protocol
5432	PostgreSQL	✓	—	PostgreSQL database
5900	VNC	✓	—	Virtual Network Computing
6379	Redis	✓	—	Redis
8080	HTTP-ALT	✓	—	HTTP alternate (proxy/web)
8443	HTTPS-ALT	✓	—	HTTPS alternate
9092	Kafka	✓	—	Apache Kafka
9200	Elasticsearch	✓	—	Elasticsearch HTTP
11211	Memcached	✓	✓	Memcached
27017	MongoDB	✓	—	MongoDB

Curated List

Common ports from well-known, registered, and dynamic ranges.

Search & Filter

Search by port, name, or description and filter by transport protocol.

TCP & UDP Flags

Quickly see which transport each service uses.

How to Use TCP Port Reference

1Enter the URL, IP address, or network parameter to look up.
2Click the lookup or test button.
3Review the detailed results in the output panel.
4Use the information for your network operations.

Features

✓100% free — no signup, no subscription, no ads
✓Runs entirely in your browser — data never leaves your device
✓Fast and lightweight — instant results
✓Cross-platform — works on desktop, tablet, and mobile

Frequently Asked Questions

Are network lookups real-time?

Yes, IP lookups, DNS queries, and HTTP tests perform live network requests to provide current data.

Is my IP address logged?

The IP Lookup tool queries public geolocation APIs. We do not store your IP address or lookup history.

Why do geolocation results differ between providers?

Each provider maintains its own IP-to-location database with different update cycles and coverage. Treat any single result as an approximation, not an exact address.