IANA registry

Port Numbers

N° 80 entries · updated 2026-07-18 · click any code to copy

Network services listen on numbered ports. Ports 0–1023 are the IANA well-known range; above that live the registered ports that databases, message queues and dev servers have made famous. This ledger lists the ones worth knowing by heart.

Port	Protocol	Service
	TCP	FTP (data transfer)
	TCP	FTP (control)
	TCP	SSH — secure shell, SFTP and port forwarding
	TCP	Telnet (unencrypted remote login, legacy)
	TCP	SMTP — mail transfer between servers
	TCP/UDP	DNS — domain name resolution
	UDP	DHCP server
	UDP	DHCP client
	UDP	TFTP — trivial file transfer
	TCP	HTTP — unencrypted web traffic
	TCP	POP3 — mail retrieval
	TCP	NNTP — Usenet news
	UDP	NTP — network time synchronization
	TCP	Microsoft RPC endpoint mapper
	UDP	NetBIOS name service
	TCP	NetBIOS session service
	TCP	IMAP — mail access
	UDP	SNMP — network monitoring
	UDP	SNMP traps
	TCP	BGP — border gateway protocol routing
	TCP	IRC — internet relay chat
	TCP/UDP	LDAP — directory services
	TCP/UDP	HTTPS — encrypted web traffic (TLS; UDP for HTTP/3 QUIC)
	TCP	SMB — Windows file sharing
	TCP	SMTPS — mail submission over implicit TLS
	UDP	IKE — IPsec key exchange
	UDP	Syslog — system logging
	TCP	LPD — line printer daemon
	TCP	SMTP mail submission (STARTTLS)
	TCP/UDP	IPP — internet printing protocol (CUPS)
	TCP	LDAPS — LDAP over TLS
	TCP	DNS over TLS
	TCP	rsync file synchronization
	TCP	VMware ESXi management
	TCP	FTPS data
	TCP	FTPS control
	TCP	IMAPS — IMAP over TLS
	TCP	POP3S — POP3 over TLS
	TCP	SOCKS proxy
	TCP/UDP	OpenVPN
	TCP	Microsoft SQL Server
	TCP	Oracle database listener
	UDP	L2TP VPN tunneling
	TCP	PPTP VPN (legacy)
	UDP	RADIUS authentication
	UDP	RADIUS accounting
	TCP	MQTT — IoT messaging
	TCP/UDP	NFS — network file system
	TCP	cPanel
	TCP	cPanel over TLS
	TCP	Apache ZooKeeper
	TCP	Docker daemon (unencrypted)
	TCP	Docker daemon (TLS)
	TCP	Common dev server (Node.js, Rails, Grafana)
	TCP	Squid proxy
	TCP	MySQL / MariaDB database
	TCP	RDP — Windows remote desktop
	TCP	Erlang port mapper (RabbitMQ)
	TCP/UDP	SIP — VoIP signaling
	TCP	SIP over TLS
	TCP	XMPP — instant messaging client
	UDP	mDNS — multicast DNS (Bonjour/Avahi)
	TCP	PostgreSQL database
	TCP	AMQP over TLS (RabbitMQ)
	TCP	AMQP (RabbitMQ)
	TCP	VNC remote desktop
	TCP	Redis key-value store
	TCP	Kubernetes API server
	TCP	IRC (classic)
	TCP	Common dev/alt HTTP port
	TCP	HTTP alternate — proxies and app servers
	TCP	HTTPS alternate
	TCP	MQTT over TLS
	TCP	PHP-FPM / SonarQube / MinIO
	TCP	Prometheus monitoring
	TCP	Apache Kafka
	TCP	Elasticsearch REST API
	TCP	Git protocol
	TCP	Memcached
	TCP	MongoDB database

Curated from the IANA Service Name and Transport Protocol Port Number Registry.