Port Number Lookup
Search common TCP and UDP port numbers and the services that use them.
- Runs in your browser
- No upload on server
- Free, forever
- Enter details
- Run check
- Copy result
| Port | Proto | Service |
|---|---|---|
| 20 | TCP | FTP-DATA |
| 21 | TCP | FTP |
| 22 | TCP | SSH |
| 23 | TCP | Telnet |
| 25 | TCP | SMTP |
| 53 | TCP/UDP | DNS |
| 67 | UDP | DHCP |
| 68 | UDP | DHCP |
| 69 | UDP | TFTP |
| 80 | TCP | HTTP |
| 110 | TCP | POP3 |
| 119 | TCP | NNTP |
| 123 | UDP | NTP |
| 137 | UDP | NetBIOS-NS |
| 138 | UDP | NetBIOS-DGM |
| 139 | TCP | NetBIOS-SSN |
| 143 | TCP | IMAP |
| 161 | UDP | SNMP |
| 162 | UDP | SNMP-TRAP |
| 179 | TCP | BGP |
| 194 | TCP | IRC |
| 389 | TCP | LDAP |
| 443 | TCP | HTTPS |
| 445 | TCP | SMB |
| 465 | TCP | SMTPS |
| 514 | UDP | Syslog |
| 515 | TCP | LPD |
| 587 | TCP | SMTP |
| 631 | TCP | IPP |
| 636 | TCP | LDAPS |
| 993 | TCP | IMAPS |
| 995 | TCP | POP3S |
| 1080 | TCP | SOCKS |
| 1194 | UDP | OpenVPN |
| 1433 | TCP | MSSQL |
| 1521 | TCP | Oracle |
| 1723 | TCP | PPTP |
| 2049 | TCP | NFS |
| 3000 | TCP | Dev server |
| 3306 | TCP | MySQL |
| 3389 | TCP | RDP |
| 5060 | UDP | SIP |
| 5432 | TCP | PostgreSQL |
| 5900 | TCP | VNC |
| 5984 | TCP | CouchDB |
| 6379 | TCP | Redis |
| 6667 | TCP | IRC |
| 8080 | TCP | HTTP-alt |
| 8443 | TCP | HTTPS-alt |
| 8888 | TCP | Dev server |
| 9000 | TCP | PHP-FPM |
| 9092 | TCP | Kafka |
| 9200 | TCP | Elasticsearch |
| 11211 | TCP | Memcached |
| 27017 | TCP | MongoDB |
How this works — and why it's private
- Search by number (like 443) or service name (like redis).
- Use the result when opening firewall rules or debugging a connection.
Bundled IANA list — works offline.
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