Your files stay on your device TCP and UDP port reference A curated, dated snapshot of the IANA port-number registry: system ranges explained, common registered ports included, de-facto ports labeled as de-facto. Searching filters in this tab. 86 entries · snapshot 2026-08-24All groupsWeb & proxyEmailRemote access & shellFile transferNaming & directoryDatabases & cachingMessaging & VoIPMedia & streamingVPN & tunnelingNetwork infrastructureSystem & diagnostics Port IANA name Protocols Description 80 http tcp World Wide Web HTTP. Group Web & proxy 443 https tcp HTTP over TLS/SSL. Group Web & proxy 8080 http-alt tcp,udp HTTP alternate; assigned by IANA, also the classic proxy port. Group Web & proxy 8443 https-alt tcp HTTPS alternate: de-facto reverse-proxy port, not IANA-assigned. Group Web & proxy 3128 squid tcp Squid web proxy. Group Web & proxy 1080 socks tcp,udp SOCKS proxy. Group Web & proxy 8000 irdmi tcp Assigned as irdmi; used de-facto as an alternate HTTP port. Group Web & proxy 25 smtp tcp Simple Mail Transfer (server-to-server relay). Group Email 465 submissions tcp Mail submission over implicit TLS (re-designated by IANA in 2018). Group Email 587 submission tcp Mail submission (client to server, STARTTLS). Group Email 143 imap tcp Internet Message Access Protocol. Group Email 993 imaps tcp IMAP over TLS. Group Email 110 pop3 tcp Post Office Protocol v3. Group Email 995 pop3s tcp POP3 over TLS. Group Email 22 ssh tcp,udp Secure Shell (also SCP/SFTP). Group Remote access & shell 23 telnet tcp Telnet: plaintext, never expose it. Group Remote access & shell 3389 ms-wbt-server tcp,udp Microsoft Remote Desktop Protocol. Group Remote access & shell 5900 vnc tcp Virtual Network Computing (RFB). Group Remote access & shell 5985 http-alt-2 tcp HTTP alternate; used by WinRM HTTP (PowerShell remoting). Group Remote access & shell 5986 http-alt-3 tcp HTTP alternate; used by WinRM over HTTPS. Group Remote access & shell 20 ftp-data tcp File Transfer Protocol (data channel, active mode). Group File transfer 21 ftp tcp File Transfer Protocol (control). Group File transfer 69 tftp udp Trivial File Transfer Protocol. Group File transfer 989 ftps-data tcp FTP over TLS (data channel). Group File transfer 990 ftps tcp FTP over TLS (control channel). Group File transfer 2049 nfs tcp,udp Network File System. Group File transfer 53 domain tcp,udp Domain Name System. Group Naming & directory 389 ldap tcp,udp Lightweight Directory Access Protocol. Group Naming & directory 636 ldaps tcp LDAP over TLS. Group Naming & directory 3268 msft-gc tcp Microsoft Global Catalog. Group Naming & directory 3269 msft-gc-ssl tcp Microsoft Global Catalog over TLS. Group Naming & directory 1433 ms-sql-s tcp Microsoft SQL Server. Group Databases & caching 1434 ms-sql-m udp Microsoft SQL Server monitor. Group Databases & caching 1521 oracle tcp Oracle database default listener. Group Databases & caching 3306 mysql tcp MySQL / MariaDB. Group Databases & caching 5432 postgresql tcp PostgreSQL. Group Databases & caching 6379 redis tcp Redis in-memory data store. Group Databases & caching 11211 memcache tcp,udp Memcached. Group Databases & caching 27017 mongod tcp MongoDB. Group Databases & caching 9042 cassandra tcp Cassandra native transport: de-facto, not IANA-assigned. Group Databases & caching 5060 sip tcp,udp Session Initiation Protocol. Group Messaging & VoIP 5061 sip-tls tcp SIP over TLS. Group Messaging & VoIP 1883 mqtt tcp MQTT message broker. Group Messaging & VoIP 8883 secure-mqtt tcp MQTT over TLS. Group Messaging & VoIP 5672 amqp tcp,udp AMQP 0-9-1 message queue. Group Messaging & VoIP 5671 amqps tcp AMQP over TLS. Group Messaging & VoIP 4222 nats tcp NATS messaging system. Group Messaging & VoIP 1935 rtmp tcp Real-Time Messaging Protocol (live streaming). Group Media & streaming 554 rtsp tcp,udp Real-Time Streaming Control Protocol. Group Media & streaming 1755 ms-streaming tcp,udp MMS media streaming (legacy Microsoft). Group Media & streaming 3478 stun tcp,udp STUN and TURN (WebRTC NAT traversal). Group Media & streaming 5349 stuns-tls tcp STUN/TURN over TLS. Group Media & streaming 1194 openvpn tcp,udp OpenVPN. Group VPN & tunneling 500 isakmp udp IKE: IPsec key exchange. Group VPN & tunneling 4500 ipsec-nat-t udp IPsec NAT traversal. Group VPN & tunneling 1701 l2f udp Layer-2 Forwarding / L2TP. Group VPN & tunneling 1723 pptp tcp Point-to-Point Tunneling Protocol (legacy). Group VPN & tunneling 67 bootps udp DHCP server (Bootstrap Protocol Server). Group Network infrastructure 68 bootpc udp DHCP client (Bootstrap Protocol Client). Group Network infrastructure 123 ntp udp Network Time Protocol. Group Network infrastructure 179 bgp tcp Border Gateway Protocol. Group Network infrastructure 546 dhcpv6-client udp DHCPv6 client. Group Network infrastructure 547 dhcpv6-server udp DHCPv6 server. Group Network infrastructure 4789 vxlan udp VXLAN overlay encapsulation (IANA-assigned; Linux used 8472 before this existed). Group Network infrastructure 6081 geneve udp Geneve network virtualization encapsulation. Group Network infrastructure 7 echo tcp,udp Echo (diagnostic). Group System & diagnostics 9 discard tcp,udp Discard (diagnostic; also used for Wake-on-LAN). Group System & diagnostics 13 daytime tcp,udp Daytime (diagnostic). Group System & diagnostics 17 qotd tcp Quote of the Day. Group System & diagnostics 19 chargen tcp,udp Character generator (diagnostic). Group System & diagnostics 37 time tcp,udp Time protocol. Group System & diagnostics 49 tacacs tcp TACACS+ login host protocol. Group System & diagnostics 88 kerberos-sec tcp,udp Kerberos authentication. Group System & diagnostics 111 sunrpc tcp,udp RPC portmapper (rpcbind). Group System & diagnostics 113 ident tcp Identification protocol. Group System & diagnostics 161 snmp tcp,udp SNMP agent. Group System & diagnostics 162 snmptrap tcp,udp SNMP trap. Group System & diagnostics 514 syslog udp Syslog over UDP (TCP by convention). Group System & diagnostics 6514 syslog-tls tcp Syslog over TLS. Group System & diagnostics 1812 radius udp RADIUS authentication. Group System & diagnostics 1813 radius-acct udp RADIUS accounting. Group System & diagnostics 9090 websm-port tcp Assigned as IBM Web Systems Management; used de-facto by Prometheus and consoles. Group System & diagnostics 9100 hp-pdl-datastr tcp Assigned for raw printing (HP JetDirect); also node-exporter metrics de-facto. Group System & diagnostics 5601 kibana tcp Kibana dashboards: de-facto, not IANA-assigned. Group System & diagnostics 9200 wap-wsp tcp Assigned for WAP session; Elasticsearch REST uses it de-facto. Group System & diagnostics 3000 grafana tcp Grafana and dev-app servers: de-facto, not IANA-assigned. Group System & diagnostics IANA Service Name and Transport Protocol Port Number Registry (iana.org/assignments/service-names-port-numbers), curated subset . - 0 to 1023: System (well-known) ports: assigned by IANA to specific services. - 1024 to 49151: User (registered) ports: assignable by IANA on request. - 49152 to 65535: Dynamic (private/ephemeral) ports: not assignable; used as client source ports. - The data is a committed snapshot from 2026-08-24 , the registry reassigns and adds entries monthly, and the date is the claim's scope. - curated This is the subset people actually look up, not all 140,000+ registry rows; unknown numbers say so and point at the full registry. - Names are IANA keywords where IANA assigned one. Ports used by convention without an assignment (8443, 9042, 5601, 3000…) say de-facto in the description instead of inventing authority. - Searching is pure filtering over the committed snapshot. No request leaves your browser. This tool cannot and does not scan ports. Done Finished here in the tab. Nothing was uploaded. reference data ships with the page: it works offline after load More network tools - IP range classifier (/network/ip-classify) - URL encoder (/encoding/url-encoder) All network tools (/network) Canonical HTML: https://nutter.tools/network/ports/ Markdown version: https://nutter.tools/network/ports/index.md Plain-text version: https://nutter.tools/network/ports/index.txt Agent index: https://nutter.tools/llms.txt