Tools
Port lookup
Every service on a network listens on a numbered port. Look one up to learn what runs on it.
Look up a port
Type a port number to jump to its page.
Every port in the list
Pick a port to see what runs on it.
- 20 — FTP data · TCP
- 21 — FTP control · TCP
- 22 — SSH · TCP
- 23 — Telnet · TCP
- 25 — SMTP · TCP
- 53 — DNS · TCP and UDP
- 67 — DHCP server · UDP
- 69 — TFTP · UDP
- 80 — HTTP · TCP
- 88 — Kerberos · TCP and UDP
- 110 — POP3 · TCP
- 123 — NTP · UDP
- 135 — Microsoft RPC · TCP and UDP
- 139 — NetBIOS session · TCP
- 143 — IMAP · TCP
- 161 — SNMP · UDP
- 389 — LDAP · TCP and UDP
- 443 — HTTPS · TCP
- 445 — Microsoft SMB · TCP
- 465 — Secure SMTP · TCP
- 514 — Syslog · UDP
- 587 — SMTP submission · TCP
- 636 — Secure LDAP · TCP
- 993 — Secure IMAP · TCP
- 995 — Secure POP3 · TCP
- 1080 — SOCKS proxy · TCP and UDP
- 1194 — OpenVPN · TCP and UDP
- 1433 — Microsoft SQL Server · TCP
- 1883 — MQTT · TCP
- 2049 — NFS · TCP and UDP
- 2375 — Docker API · TCP
- 3306 — MySQL · TCP
- 3389 — Remote Desktop · TCP and UDP
- 5060 — SIP · TCP and UDP
- 5432 — PostgreSQL · TCP
- 5900 — VNC · TCP
- 6379 — Redis · TCP
- 6443 — Kubernetes API · TCP
- 8080 — HTTP alternate · TCP
- 8443 — HTTPS alternate · TCP
- 9200 — Elasticsearch · TCP
- 27017 — MongoDB · TCP
Learn on the job
Ports are daily work on the network desk.
Look up a port here, then see it in real work on the network desk.