Common Ports Lookup
Search a curated list of well-known and common TCP/UDP ports to find out which service uses them — HTTP, SSH, MySQL, Docker, Kubernetes and more. Instant, offline lookup in your browser.
41 ports
File Transfer Protocol — data transfer.
File Transfer Protocol — control connection.
Secure Shell for encrypted remote login and file transfer.
Unencrypted remote terminal access (legacy).
Simple Mail Transfer Protocol for sending email.
Domain Name System lookups.
Dynamic Host Configuration Protocol — server.
Dynamic Host Configuration Protocol — client.
Trivial File Transfer Protocol.
HyperText Transfer Protocol for the web.
Post Office Protocol for receiving email.
Network Time Protocol for clock synchronization.
Internet Message Access Protocol for email.
Simple Network Management Protocol.
HyperText Transfer Protocol Secure (TLS).
Server Message Block file sharing.
SMTP over SSL/TLS.
Email message submission port.
IMAP over SSL/TLS.
POP3 over SSL/TLS.
SOCKS proxy protocol.
Microsoft SQL Server.
Oracle database listener.
Network File System.
Docker daemon API without TLS.
Docker daemon API over TLS.
Common port for dev servers (React, Next.js, Grafana).
MySQL database server.
Remote Desktop Protocol (Windows).
Common for Flask and many dev servers.
PostgreSQL database server.
Virtual Network Computing remote desktop.
Redis in-memory data store.
Kubernetes API server.
Common alternative HTTP port (Tomcat, proxies).
Common alternative HTTPS port.
PHP-FPM, SonarQube and other dev services.
Apache Kafka broker.
Elasticsearch HTTP API.
Memcached cache server.
MongoDB database server.
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