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Common Port Number Reference

Searchable reference of 90 common TCP/UDP ports developers encounter — web, database, email, file transfer, remote access, messaging, networking, and DevOps

Showing 90 of 90 entries. Ports 0–1023 are well-known (require root), 1024–49151 are registered.

PortProtocolServiceDescriptionCategory
80tcpHTTPHypertext Transfer Protocol
Web
443tcpHTTPSHTTP over TLS/SSL
WebTLS
8080tcpHTTP-AltAlternate HTTP (commonly dev servers, proxies)
Web
8443tcpHTTPS-AltAlternate HTTPS
WebTLS
8000tcpHTTP-AltCommon dev server default (Django, etc.)
Web
3000tcpDev-ServerCommon Next.js / Node.js / React dev port
Web
4200tcpAngular-DevAngular CLI default dev port
Web
5000tcpFlask/PyFlask, .NET, default macOS AirPlay
Web
9000tcpPHP-FPMPHP-FPM, SonarQube, alternate HTTP
Web
4000tcpDev-ServerJekyll, Phoenix, Elixir
Web
3306tcpMySQLMySQL / MariaDB
Database
5432tcpPostgreSQLPostgreSQL default
Database
1433tcpSQL ServerMicrosoft SQL Server
Database
1521tcpOracleOracle Database listener
Database
27017tcpMongoDBMongoDB default
Database
6379tcpRedisRedis default
Database
11211tcpMemcachedMemcached default
Database
9200tcpElasticsearchElasticsearch HTTP
Database
9300tcpElasticsearchElasticsearch transport
Database
8529tcpArangoDBArangoDB default
Database
7474tcpNeo4jNeo4j HTTP
Database
7687tcpNeo4jNeo4j Bolt
Database
5984tcpCouchDBApache CouchDB
Database
8086tcpInfluxDBInfluxDB HTTP API
Database
25tcpSMTPSimple Mail Transfer Protocol (server-to-server)
Email
465tcpSMTPSSMTP over TLS (implicit)
EmailTLS
587tcpSMTPSMTP submission (STARTTLS)
EmailTLS
110tcpPOP3Post Office Protocol v3
Email
995tcpPOP3SPOP3 over TLS
EmailTLS
143tcpIMAPInternet Message Access Protocol
Email
993tcpIMAPSIMAP over TLS
EmailTLS
20tcpFTP-DataFTP data transfer
File Transfer
21tcpFTPFTP control
File Transfer
22tcpSFTP/SSHSSH (incl. SFTP subsystem)
Remote AccessTLS
69udpTFTPTrivial FTP
File Transfer
115tcpSFTPSimple FTP (legacy, not SSH SFTP)
File Transfer
989tcpFTPS-DataFTP over TLS data
File TransferTLS
990tcpFTPSFTP over TLS control
File TransferTLS
23tcpTelnetUnencrypted remote terminal (DEPRECATED)
Remote AccessDeprecated
5900tcpVNCVNC remote desktop (display :0)
Remote Access
3389tcpRDPMicrosoft Remote Desktop Protocol
Remote AccessTLS
5985tcpWinRMWindows Remote Management HTTP
Remote Access
5986tcpWinRMWindows Remote Management HTTPS
Remote AccessTLS
1883tcpMQTTMQTT (unencrypted)
Messaging
8883tcpMQTTSMQTT over TLS
MessagingTLS
5672tcpAMQPRabbitMQ / AMQP 0-9-1
Messaging
5671tcpAMQPSAMQP over TLS
MessagingTLS
61616tcpActiveMQApache ActiveMQ OpenWire
Messaging
9092tcpKafkaApache Kafka
Messaging
4222tcpNATSNATS default
Messaging
8333tcpZMQZeroMQ alternate
Messaging
53tcp/udpDNSDomain Name System
Networking
67udpDHCP-ServerDHCP server-to-client
Networking
68udpDHCP-ClientDHCP client-to-server
Networking
123udpNTPNetwork Time Protocol
Networking
161udpSNMPSimple Network Management Protocol
Networking
162udpSNMP-TrapSNMP traps
Networking
389tcpLDAPLightweight Directory Access Protocol
Networking
636tcpLDAPSLDAP over TLS
NetworkingTLS
1812udpRADIUSRADIUS authentication
Networking
1813udpRADIUS-AcctRADIUS accounting
Networking
500udpIPsec/IKEInternet Key Exchange
Networking
2375tcpDockerDocker daemon (unencrypted — avoid in prod)
DevOpsDeprecated
2376tcpDocker-TLSDocker daemon over TLS
DevOpsTLS
5000tcpRegistryDocker Registry (v2)
DevOps
4243tcpDocker-OldDocker daemon legacy (deprecated)
DevOpsDeprecated
10250tcpkubeletKubernetes kubelet API
DevOpsTLS
10255tcpkubelet-ROKubernetes kubelet read-only
DevOpsDeprecated
6443tcpkube-APIKubernetes API server
DevOpsTLS
30000tcpNodePortKubernetes NodePort range start (30000–32767)
DevOps
8200tcpVaultHashiCorp Vault
DevOps
4646tcpNomadHashiCorp Nomad
DevOps
8500tcpConsulHashiCorp Consul UI/API
DevOps
587tcpSubmissionSMTP Submission (also encrypted via STARTTLS)
SecurityTLS
1194udpOpenVPNOpenVPN default
SecurityTLS
51820udpWireGuardWireGuard default
SecurityTLS
4500udpIPsec-NATIPsec NAT-T
Security
54321tcpOSSECOSSEC agent
Security
0tcp/udpReservedReserved — not assignable to apps
Other
113tcpidentIdentification service (legacy)
Other
5353udpmDNSMulticast DNS (Bonjour)
Other
1900udpUPnP/SSDPSimple Service Discovery Protocol
Other
9418tcpGitGit protocol (unencrypted)
Other
5269tcpXMPPJabber/XMPP server-to-server
Other
5222tcpXMPPJabber/XMPP client-to-server
Other
8200tcpPowerShell-WebPSWS HTTP listener (default config)
Other
5173tcpVite-DevVite default dev server
Other
4173tcpVite-PreviewVite preview
Other
3001tcpDev-ServerCommon second-instance dev port
Other
3002tcpDev-ServerCommon third-instance dev port
Other