Searchable list of well-known network ports and the services that use them.
87 of 87 entries — click any row to copy the port number
FTP (data)TCP
File Transfer Protocol — data channel
FTP (control)TCP
File Transfer Protocol — control channel
SSHTCP
Secure Shell — remote login & tunneling
TelnetTCP
Unencrypted remote terminal access
SMTPTCP
Simple Mail Transfer Protocol — sending email
DNSTCP/UDP
Domain Name System resolution
DHCP (server)UDP
Dynamic Host Configuration Protocol
DHCP (client)UDP
TFTPUDP
Trivial File Transfer Protocol
HTTPTCP
Hypertext Transfer Protocol — web traffic
POP3TCP
Post Office Protocol v3 — receiving email
NNTPTCP
Network News Transfer Protocol
NTPUDP
Network Time Protocol — clock sync
NetBIOS Name ServiceTCP/UDP
Windows networking name resolution
NetBIOS DatagramUDP
Windows networking datagram service
NetBIOS SessionTCP
Windows file & printer sharing
IMAPTCP
Internet Message Access Protocol — email
SNMPUDP
Simple Network Management Protocol
SNMP TrapUDP
SNMP notification messages
BGPTCP
Border Gateway Protocol — internet routing
IRCTCP
Internet Relay Chat
LDAPTCP/UDP
Lightweight Directory Access Protocol
HTTPSTCP
HTTP over TLS/SSL — secure web traffic
SMBTCP
Server Message Block — Windows file sharing
SMTPSTCP
SMTP over implicit TLS
SyslogUDP
System logging protocol
LPD/LPRTCP
Line Printer Daemon — printing
Kerberos (login)TCP
Kerberos authentication
DHCPv6 (client)UDP
DHCP for IPv6 — client
DHCPv6 (server)UDP
DHCP for IPv6 — server
SMTP (submission)TCP
Mail submission with STARTTLS
IPPTCP/UDP
Internet Printing Protocol
LDAPSTCP
LDAP over TLS/SSL
DoomTCP/UDP
Classic Doom multiplayer
rsyncTCP
File synchronization protocol
FTPS (data)TCP
FTP over implicit TLS — data
FTPS (control)TCP
FTP over implicit TLS — control
IMAPSTCP
IMAP over TLS/SSL
POP3STCP
POP3 over TLS/SSL
SOCKS ProxyTCP
SOCKS proxy protocol
OpenVPNUDP
OpenVPN default port
MS SQL ServerTCP
Microsoft SQL Server
Oracle DBTCP
Oracle database default listener
PPTPTCP
Point-to-Point Tunneling Protocol VPN
MQTTTCP
Message Queuing Telemetry Transport (IoT)
NFSTCP/UDP
Network File System
cPanelTCP
cPanel control panel (HTTP)
cPanel (SSL)TCP
cPanel control panel over TLS
DirectAdmin / SSH altTCP
Common alternate SSH / control panel port
Docker (unencrypted)TCP
Docker daemon API — unencrypted
Docker (TLS)TCP
Docker daemon API over TLS
Dev serversTCP
Common Node/React/Rails dev server port
Squid ProxyTCP
Common HTTP proxy port
Global Catalog (LDAP)TCP
Active Directory global catalog
MySQL / MariaDBTCP
MySQL & MariaDB database default port
RDPTCP
Remote Desktop Protocol — Windows remote access
Subversion (svn)TCP
Subversion version control
EPMDTCP
Erlang Port Mapper Daemon (RabbitMQ)
Dev servers / UPnPTCP
Common Flask/.NET dev server, also macOS AirPlay
SIPTCP/UDP
Session Initiation Protocol — VoIP signalling
SIP (TLS)TCP
SIP over TLS
XMPPTCP
Extensible Messaging and Presence Protocol
PostgreSQLTCP
PostgreSQL database default port
KibanaTCP
Kibana web UI default port
AMQPTCP
Advanced Message Queuing Protocol (RabbitMQ)
VNCTCP
Virtual Network Computing — remote desktop
CouchDBTCP
Apache CouchDB HTTP API
RedisTCP
Redis in-memory data store default port
Kubernetes APITCP
Kubernetes API server
IRC altTCP
Alternate IRC port range start
Internet Relay Chat default port
SparkTCP
Apache Spark master default port
Common Django/Python dev server port
HTTP altTCP
Alternate HTTP port
HTTP Proxy / altTCP
Common alternate HTTP / proxy / Tomcat port
InfluxDBTCP
InfluxDB HTTP API default port
HTTPS altTCP
Common alternate HTTPS port
Jupyter NotebookTCP
Jupyter Notebook / HTTP alt default port
PHP-FPM / SonarQubeTCP
PHP FastCGI Process Manager, SonarQube, etc.
CassandraTCP
Apache Cassandra native client port
KafkaTCP
Apache Kafka broker default port
ElasticsearchTCP
Elasticsearch HTTP REST API
Elasticsearch (transport)TCP
Elasticsearch node-to-node transport
MemcachedTCP/UDP
Memcached default port
MongoDBTCP
MongoDB database default port
SAP / DB2TCP
SAP and IBM DB2 default communication port