Running on your device · 0 bytes uploaded # 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 . - 0–1023 — System (well-known) ports — assigned by IANA to specific services. - 1024–49151 — User (registered) ports — assignable by IANA on request. - 49152–65535 — 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 ## Next door in Network - [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