Common ports reference
Well-known ports (0–1023) need root/admin privileges to bind on Unix systems; registered ports (1024–49151) don't.
| Port | Service |
|---|---|
| 20 | FTP (data) |
| 21 | FTP (control) |
| 22 | SSH |
| 23 | Telnet |
| 25 | SMTP |
| 43 | WHOIS |
| 53 | DNS |
| 67 | DHCP (server) |
| 68 | DHCP (client) |
| 69 | TFTP |
| 80 | HTTP |
| 110 | POP3 |
| 119 | NNTP |
| 123 | NTP |
| 137 | NetBIOS Name Service |
| 138 | NetBIOS Datagram |
| 139 | NetBIOS Session (SMB) |
| 143 | IMAP |
| 161 | SNMP |
| 162 | SNMP Trap |
| 179 | BGP |
| 389 | LDAP |
| 443 | HTTPS |
| 445 | SMB |
| 465 | SMTPS |
| 514 | Syslog |
| 515 | LPD Printing |
| 587 | SMTP (submission) |
| 631 | IPP (CUPS) |
| 636 | LDAPS |
| 873 | rsync |
| 989 | FTPS (data) |
| 990 | FTPS (control) |
| 993 | IMAPS |
| 995 | POP3S |
| 1080 | SOCKS proxy |
| 1194 | OpenVPN |
| 1433 | Microsoft SQL Server |
| 1521 | Oracle DB |
| 1723 | PPTP |
| 2049 | NFS |
| 2082 | cPanel |
| 2083 | cPanel (SSL) |
| 2086 | WHM |
| 2087 | WHM (SSL) |
| 2222 | SSH (alt, common on hosting) |
| 3000 | Common dev server |
| 3128 | Squid proxy |
| 3306 | MySQL / MariaDB |
| 3389 | RDP |
| 3690 | Subversion |
| 4443 | HTTPS (alt) |
| 5000 | Common dev server / UPnP |
| 5060 | SIP |
| 5222 | XMPP |
| 5432 | PostgreSQL |
| 5601 | Kibana |
| 5900 | VNC |
| 5984 | CouchDB |
| 6379 | Redis |
| 6443 | Kubernetes API |
| 6660 | IRC |
| 6667 | IRC |
| 7000 | Cassandra |
| 8000 | Common dev server |
| 8006 | Proxmox VE |
| 8080 | HTTP (alt / proxy) |
| 8081 | HTTP (alt) |
| 8443 | HTTPS (alt) |
| 8888 | Common dev/proxy |
| 9000 | PHP-FPM / SonarQube |
| 9042 | Cassandra (native) |
| 9092 | Kafka |
| 9200 | Elasticsearch |
| 9418 | Git protocol |
| 11211 | Memcached |
| 27017 | MongoDB |
| 27018 | MongoDB (shard) |
What is Common ports reference?
Network services conventionally listen on well-known port numbers — 443 for HTTPS, 22 for SSH, 3306 for MySQL — so knowing the standard assignments helps you recognize what's running just from a port number in a scan or firewall rule.
How to use it
Search by port number or service name to filter the list instantly.
Example
Searching "443" shows: 443 -> HTTPS.