Internet protocols use port numbers

• HTTP - Port 80
• HTTPS - Port 443
• FTP - Port 21
• SSH - Port 22
• SMTP - Port 25
• POP3 - Port 110
• IMAP - Port 143
• DNS - Port 53
• TELNET - Port 23
• HTTPS (Alternative) - Port 8443

• RDP (Remote Desktop Protocol) - Port 3389
• SNMP (Simple Network Management Protocol) - Port 161/162
• SMTPS (SMTP Secure) - Port 465
• NTP (Network Time Protocol) - Port 123
• LDAP (Lightweight Directory Access Protocol) - Port 389
• HTTPS (Alternative) - Port 8443
• SFTP (SSH File Transfer Protocol) - Port 22 (varied)
• MySQL - Port 3306
• PostgreSQL - Port 5432
• Kerberos - Port 88

• ICMP (Internet Control Message Protocol) - No port, used for network diagnostics
• LDAP (Lightweight Directory Access Protocol) - Port 636 (LDAPS - LDAP over TLS/SSL)
• FTPS (FTP Secure) - Port 990 (Control) and Port 989 (Data)
• IMAPS (IMAP Secure) - Port 993
• LDAP (Active Directory) - Port 3268 (Global Catalog) and Port 3269 (Global Catalog over TLS/SSL)
• SIP (Session Initiation Protocol) - Port 5060 (UDP) and Port 5061 (TCP/TLS)
• RTP (Real-time Transport Protocol) - Dynamic Ports (usually UDP)
• XMPP (Extensible Messaging and Presence Protocol) - Port 5222 (Client) and Port 5269 (Server)
• BitTorrent - Port 6881-6889 (TCP/UDP)

• HTTP/2 - Port 80 (Upgraded from HTTP) and Port 443 (Upgraded from HTTPS)
• WebSocket - Port 80 (Upgraded from HTTP) and Port 443 (Upgraded from HTTPS)
• CoAP (Constrained Application Protocol) - Port 5683 (UDP) and Port 5684 (DTLS)
• MQTT (Message Queuing Telemetry Transport) - Port 1883 (TCP) and Port 8883 (MQTT over TLS)
• AMQP (Advanced Message Queuing Protocol) - Port 5672
• MongoDB - Port 27017
• RADIUS (Remote Authentication Dial-In User Service) - Port 1812 (UDP)
• Syslog - Port 514 (UDP)
• NFS (Network File System) - Port 111 (TCP/UDP)
• RTSP (Real-Time Streaming Protocol) - Port 554

• Radius Accounting - Port 1813 (UDP)
• NetBIOS - Port 137 (UDP), Port 138 (UDP), Port 139 (TCP)
• LDAP over SSL/TLS (LDAPS) - Port 636
• SNMP Trap - Port 162 (UDP)
• VNC (Virtual Network Computing) - Port 5900 (varies for different display numbers)
• ISAKMP (Internet Security Association and Key Management Protocol) - Port 500 (UDP)
• HTTPS (Alternative) - Port 8443
• LDAP (Microsoft Global Catalog) - Port 3268
• LDAP (Microsoft Global Catalog over SSL/TLS) - Port 3269

• Syslog over TLS/SSL - Port 6514
• TACACS+ (Terminal Access Controller Access-Control System Plus) - Port 49
• BGP (Border Gateway Protocol) - Port 179
• IRCS (Internet Relay Chat over SSL) - Port 994
• NTP over TLS/SSL - Port 123
• ICAP (Internet Content Adaptation Protocol) - Port 1344
• Kerberos Administration - Port 749
• OpenVPN - Port 1194
• SCP (Secure Copy Protocol) - Port 22 (typically SSH)
• SAMBA (Server Message Block) - Port 137 (UDP), 138 (UDP), 139 (TCP), 445 (TCP)

• LDAP (Microsoft Global Catalog over SSL/TLS) - Port 3269
• Apple Filing Protocol (AFP) - Port 548
• HTTP/3 - Port 443 (Uses QUIC Protocol)
• Kerberos Administration - Port 749
• CoAP (Constrained Application Protocol) - Port 5683 (UDP) and Port 5684 (DTLS)
• SPDY (Google's Previous HTTP Protocol) - Port 443
• Tor (The Onion Router) - Port 9001
• LDAP over TLS/SSL (LDAPS) - Port 636
• MongoDB - Port 27017
• Redis - Port 6379

• Zeroconf (Zero Configuration Networking) - Port 5353 (UDP)
• EtherIP - Port 972 (UDP)
• NNTP (Network News Transfer Protocol) - Port 119
• Kerberos - Port 88 (UDP)
• SNMP (Simple Network Management Protocol) - Port 161 (UDP) and Port 162 (UDP)
• NetFlow - Port 2055 (UDP)
• RTP (Real-time Transport Protocol) - Dynamic Ports (usually UDP)
• XMPP (Extensible Messaging and Presence Protocol) - Port 5222 (Client) and Port 5269 (Server)
• BitTorrent - Port 6881-6889 (TCP/UDP)
• MikroTik Winbox - Port 8291

• SFTP (SSH File Transfer Protocol) - Port 22
• RADIUS (Remote Authentication Dial-In User Service) - Port 1812 (UDP)
• SNMP Trap - Port 162 (UDP)
• VPN (Virtual Private Network) - Various Ports (e.g., PPTP on 1723, L2TP on 1701)
• Trivial File Transfer Protocol (TFTP) - Port 69 (UDP)
• WebDAV (Web-based Distributed Authoring and Versioning) - Port 80 (HTTP) and Port 443 (HTTPS)
• FTP over SSL/TLS (FTPS) - Port 990 (FTP control) and Port 989 (FTP data)
• HTTP/2 - Port 80 (HTTP) and Port 443 (HTTPS)
• LDAP over SSL/TLS (LDAPS) - Port 636
• Apache Tomcat - Port 8080

• HTTP - Port 80
• HTTPS - Port 443
• FTP - Port 21
• SSH - Port 22
• SMTP - Port 25
• POP3 - Port 110
• IMAP - Port 143
• DNS - Port 53
• TELNET - Port 23
• SFTP (SSH File Transfer Protocol) - Port 22
• SNMP (Simple Network Management Protocol) - Port 161 (UDP) and Port 162 (UDP)
• ICMP (Internet Control Message Protocol) - No port, used for network diagnostics
• LDAP (Lightweight Directory Access Protocol) - Port 389
• IMAPS (IMAP Secure) - Port 993
• CoAP (Constrained Application Protocol) - Port 5683 (UDP) and Port 5684 (DTLS)
• MQTT (Message Queuing Telemetry Transport) - Port 1883 (TCP) and Port 8883 (MQTT over TLS)
• AMQP (Advanced Message Queuing Protocol) - Port 5672
• MongoDB - Port 27017
• RADIUS (Remote Authentication Dial-In User Service) - Port 1812 (UDP)
• Syslog - Port 514 (UDP)
• NFS (Network File System) - Port 111 (TCP/UDP)
• RTSP (Real-Time Streaming Protocol) - Port 554

• HTTP - Port 80
• HTTPS - Port 443
• FTP - Port 21
• SSH - Port 22
• SMTP - Port 25
• POP3 - Port 110
• IMAP - Port 143
• DNS - Port 53
• TELNET - Port 23
• SFTP (SSH File Transfer Protocol) - Port 22
• SNMP (Simple Network Management Protocol) - Port 161 (UDP) and Port 162 (UDP)
• ICMP (Internet Control Message Protocol) - No port, used for network diagnostics
• LDAP (Lightweight Directory Access Protocol) - Port 389
• IMAPS (IMAP Secure) - Port 993
• CoAP (Constrained Application Protocol) - Port 5683 (UDP) and Port 5684 (DTLS)
• MQTT (Message Queuing Telemetry Transport) - Port 1883 (TCP) and Port 8883 (MQTT over TLS)
• AMQP (Advanced Message Queuing Protocol) - Port 5672
• MongoDB - Port 27017
• RADIUS (Remote Authentication Dial-In User Service) - Port 1812 (UDP)
• Syslog - Port 514 (UDP)
• NFS (Network File System) - Port 111 (TCP/UDP)
• RTSP (Real-Time Streaming Protocol) - Port 554
• Zeroconf (Zero Configuration Networking) - Port 5353 (UDP)
• EtherIP - Port 972 (UDP)
• NNTP (Network News Transfer Protocol) - Port 119
• Kerberos - Port 88 (UDP)
• NetFlow - Port 2055 (UDP)
• RTP (Real-time Transport Protocol) - Dynamic Ports (usually UDP)
• XMPP (Extensible Messaging and Presence Protocol) - Port 5222 (Client) and Port 5269 (Server)
• BitTorrent - Port 6881-6889 (TCP/UDP)
• MikroTik Winbox - Port 8291

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