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 2026-08-24
| 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