Does this include every registered port?

No, it covers the most common and well-known ports used in everyday networking and development.

Can I search by service name?

Yes, search by port number, protocol, service name, or description keyword.

Are custom application ports like 3000 or 8080 included?

Yes, several commonly used development and proxy ports are included alongside official well-known ports.

Is my data uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your input never leaves your device and nothing is logged or stored on our servers.

Does it work offline and on mobile?

Yes. Once the page has loaded it keeps working without a network connection, and the layout is responsive so it stays usable on phones and tablets.

Port Number Lookup

Search well-known TCP/UDP ports and their services.

Support

Works Offline

Privacy First

No Login

No API

Search

Port number or service name

Well-known ports (54)

Port	Protocol	Service	Description
20	TCP	FTP-DATA	FTP data transfer
21	TCP	FTP	File Transfer Protocol control
22	TCP	SSH	Secure Shell remote login
23	TCP	Telnet	Unencrypted remote login
25	TCP	SMTP	Simple Mail Transfer Protocol
43	TCP	WHOIS	WHOIS directory service
53	TCP/UDP	DNS	Domain Name System
67	UDP	DHCP	DHCP server
68	UDP	DHCP	DHCP client
69	UDP	TFTP	Trivial File Transfer Protocol
80	TCP	HTTP	Hypertext Transfer Protocol
110	TCP	POP3	Post Office Protocol v3
119	TCP	NNTP	Network News Transfer Protocol
123	UDP	NTP	Network Time Protocol
135	TCP	MS-RPC	Microsoft RPC endpoint mapper
137	UDP	NetBIOS-NS	NetBIOS name service
139	TCP	NetBIOS-SSN	NetBIOS session service
143	TCP	IMAP	Internet Message Access Protocol
161	UDP	SNMP	Simple Network Management Protocol
179	TCP	BGP	Border Gateway Protocol
194	TCP	IRC	Internet Relay Chat
389	TCP	LDAP	Lightweight Directory Access Protocol
443	TCP	HTTPS	HTTP over TLS/SSL
445	TCP	SMB	Microsoft SMB file sharing
465	TCP	SMTPS	SMTP over SSL
514	UDP	Syslog	System logging protocol
515	TCP	LPD	Line Printer Daemon
587	TCP	SMTP (Submission)	Mail submission agent
631	TCP	IPP	Internet Printing Protocol
636	TCP	LDAPS	LDAP over SSL
993	TCP	IMAPS	IMAP over SSL
995	TCP	POP3S	POP3 over SSL
1080	TCP	SOCKS	SOCKS proxy
1433	TCP	MSSQL	Microsoft SQL Server
1521	TCP	Oracle DB	Oracle database default listener
1723	TCP	PPTP	Point-to-Point Tunneling Protocol
2049	TCP/UDP	NFS	Network File System
27017	TCP	MongoDB	MongoDB default port
3000	TCP	Dev server	Common Node.js/React dev server port
3306	TCP	MySQL	MySQL/MariaDB database
3389	TCP	RDP	Remote Desktop Protocol
5000	TCP	Dev server	Common Flask/dev server port
5432	TCP	PostgreSQL	PostgreSQL database
5672	TCP	AMQP	RabbitMQ / AMQP message broker
5900	TCP	VNC	Virtual Network Computing
6379	TCP	Redis	Redis in-memory data store
6443	TCP	Kubernetes API	Kubernetes API server
8080	TCP	HTTP-ALT	Common alternate HTTP / proxy port
8443	TCP	HTTPS-ALT	Common alternate HTTPS port
9000	TCP	PHP-FPM / SonarQube	Common app server port
9092	TCP	Kafka	Apache Kafka broker
9200	TCP	Elasticsearch	Elasticsearch REST API
11211	TCP/UDP	Memcached	Memcached distributed cache
27015	TCP/UDP	Source Engine	Valve Source engine games

About the Port Number Lookup

Search a reference table of well-known and commonly used TCP/UDP port numbers, including their standard services and short descriptions — handy for networking, DevOps, and firewall configuration.

Examples

Search 443

Output

HTTPS — HTTP over TLS/SSL

Keyboard shortcuts

Copy the main outputCtrl / ⌘ + Shift + C
Download the resultCtrl / ⌘ + S
Share this toolCtrl / ⌘ + Shift + S
Reset the inputsAlt + R
Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-06 · Runs entirely in your browser