TCP/IP common Port's cheet sheet
TCP/IP Well Known Port Numbers (0 to 1023)
List of Common Network Port Numbers
Key terms: port numbers, network, common, protocol, services
Network ports are provided by the TCP or UDP protocols at the Transport layer. They are used by protocols in the upper layers of the OSI model. Port numbers are used to determine what protocol incoming traffic should be directed to. Ports allow a single host with a single IP address to run network services. Each port number identifies a distinct service, and each host can have 65535 ports per IP address. Port use is regulated by the Internet Corporation for Assigning Names and Numbers (ICANN). By ICANN there are three categories for ports:
- From 0 to 1023 – well known ports assigned to common protocols and services
- From 1024 to 49151 – registered ports assigned by ICANN to a specific service
- From 49152 to 65 535 – dynamic (private, high) ports range from 49,152 to 65,535. Can be used by any service on an ad hoc basis. Ports are assigned when a session is established, and released when the session ends.
Port #
|
Portocol
|
Description
|
Status
|
| 0 | TCP, UDP | Reserved; do not use (but is a permissible source port value if the sending process does not expect messages in response) |
Offical
|
| 1 | TCP, UDP | TCPMUX |
Offical
|
| 5 | TCP, UDP | RJE (Remote Job Entry) |
Offical
|
| 7 | TCP, UDP | ECHO protocol |
Offical
|
| 9 | TCP, UDP | DISCARD protocol |
Offical
|
| 11 | TCP, UDP | SYSTAT protocol |
Offical
|
| 13 | TCP, UDP | DAYTIME protocol |
Offical
|
| 17 | TCP, UDP | QOTD (Quote of the Day) protocol |
Offical
|
| 18 | TCP, UDP | Message Send Protocol |
Offical
|
| 19 | TCP, UDP | CHARGEN (Character Generator) protocol |
Offical
|
| 20 | TCP | FTP - data port (FTP-d) |
Offical
|
| 21 | TCP | FTP - control (command) port (FTP-c) |
Offical
|
| 22 | TCP, UDP | SSH (Secure Shell) - used for secure logins, file transfers (scp, sftp) and port forwarding |
Offical
|
| 23 | TCP, UDP | Telnet protocol - unencrypted text communications |
Offical
|
| 25 | TCP, UDP | SMTP (Simple Mail Transport Protocol) - used for e-mail routing between mailservers |
Offical
|
| 26 | TCP, UDP | RSFTP - A simple FTP-like protocol |
Unoffical
|
| 35 | TCP, UDP | QMS Magicolor 2 printer |
Unoffical
|
| 37 | TCP, UDP | TIME protocol |
Offical
|
| 38 | TCP, UDP | Route Access Protocol |
Offical
|
| 39 | TCP, UDP | Resource Location Protocol |
Offical
|
| 41 | TCP, UDP | Graphics |
Offical
|
| 42 | TCP, UDP | Host Name Server |
Offical
|
| 43 | TCP | WHOIS protocol |
Offical
|
| 49 | TCP, UDP | TACACS Login Host protocol |
Offical
|
| 53 | TCP, UDP | DNS (Domain Name System) |
Offical
|
| 57 | TCP | MTP, Mail Transfer Protocol |
Offical
|
| 67 | UDP | BOOTP (BootStrap Protocol) server; also used by DHCP (Dynamic Host Configuration Protocol) |
Offical
|
| 68 | UDP | BOOTP client; also used by DHCP |
Offical
|
| 69 | UDP | TFTP (Trivial File Transfer Protocol) |
Offical
|
| 70 | TCP | Gopher protocol |
Offical
|
| 79 | TCP | Finger protocol |
Offical
|
| 80 | TCP | HTTP (HyperText Transfer Protocol) - used for transferring web pages |
Offical
|
| 81 | TCP | Torpark - Onion routing ORport |
Unoffical
|
| 82 | UDP | Torpark - Control Port |
Unoffical
|
| 88 | TCP | Kerberos - authenticating agent |
Offical
|
| 101 | TCP | HOSTNAME | |
| 102 | TCP | ISO-TSAP protocol | |
| 107 | TCP | Remote Telnet Service | |
| 109 | TCP | POP, Post Office Protocol, version 2 | |
| 110 | TCP | POP3 (Post Office Protocol version 3) - used for retrieving E-mails |
Offical
|
| 111 | TCP, UDP | SUNRPC protocol | |
| 113 | TCP | ident - old server identification system, still used by IRC servers to identify its users |
Offical
|
| 115 | TCP | SFTP, Simple File Transfer Protocol | |
| 117 | TCP | UUCP-PATH | |
| 118 | TCP, UDP | SQL Services |
Offical
|
| 119 | TCP | NNTP (Network News Transfer Protocol) - used for retrieving newsgroups messages |
Offical
|
| 123 | UDP | NTP (Network Time Protocol) - used for time synchronization |
Offical
|
| 135 | TCP, UDP | EPMAP / Microsoft RPC Locator Service |
Offical
|
| 137 | TCP, UDP | NetBIOS NetBIOS Name Service |
Offical
|
| 138 | TCP, UDP | NetBIOS NetBIOS Datagram Service |
Offical
|
| 139 | TCP, UDP | NetBIOS NetBIOS Session Service |
Offical
|
| 143 | TCP, UDP | IMAP4 (Internet Message Access Protocol 4) - used for retrieving E-mails |
Offical
|
| 152 | TCP, UDP | BFTP, Background File Transfer Program | |
| 153 | TCP, UDP | SGMP, Simple Gateway Monitoring Protocol | |
| 156 | TCP, UDP | SQL Service |
Offical
|
| 158 | TCP, UDP | DMSP, Distributed Mail Service Protocol | |
| 161 | TCP, UDP | SNMP (Simple Network Management Protocol) |
Offical
|
| 162 | TCP, UDP | SNMPTRAP |
Offical
|
| 170 | TCP | Print-srv | |
| 179 | TCP | BGP (Border Gateway Protocol) |
Offical
|
| 194 | TCP | IRC (Internet Relay Chat) |
Offical
|
| 201 | TCP, UDP | AppleTalk Routing Maintenance | |
| 209 | TCP, UDP | The Quick Mail Transfer Protocol | |
| 213 | TCP, UDP | IPX |
Offical
|
| 218 | TCP, UDP | MPP, Message Posting Protocol | |
| 220 | TCP, UDP | IMAP, Interactive Mail Access Protocol, version 3 | |
| 259 | TCP, UDP | ESRO, Efficient Short Remote Operations | |
| 264 | TCP, UDP | BGMP, Border Gateway Multicast Protocol | |
| 311 | TCP | Apple Server-Admin-Tool, Workgroup-Manager-Tool | |
| 318 | TCP, UDP | TSP, Time Stamp Protocol | |
| 323 | TCP, UDP | IMMP, Internet Message Mapping Protocol | |
| 383 | TCP, UDP | HP OpenView HTTPs Operations Agent | |
| 366 | TCP, UDP | SMTP, Simple Mail Transfer Protocol. ODMR, On-Demand Mail Relay | |
| 369 | TCP, UDP | Rpc2portmap |
Offical
|
| 371 | TCP, UDP | ClearCase albd |
Offical
|
| 384 | TCP, UDP | A Remote Network Server System | |
| 387 | TCP, UDP | AURP, AppleTalk Update-based Routing Protocol | |
| 389 | TCP, UDP | LDAP (Lightweight Directory Access Protocol) |
Offical
|
| 401 | TCP, UDP | UPS Uninterruptible Power Supply |
Offical
|
| 411 | TCP | Direct Connect Hub port |
Unoffical
|
| 427 | TCP, UDP | SLP (Service Location Protocol) |
Offical
|
| 443 | TCP | HTTPS - HTTP Protocol over TLS/SSL (encrypted transmission) |
Offical
|
| 444 | TCP, UDP | SNPP, Simple Network Paging Protocol | |
| 445 | TCP | Microsoft-DS (Active Directory, Windows shares, Sasser worm, Agobot, Zobotworm) |
Offical
|
| 445 | UDP | Microsoft-DS SMB file sharing |
Offical
|
| 464 | TCP, UDP | Kerberos Change/Set password |
Offical
|
| 465 | TCP | SMTP over SSL - CONFLICT with registered Cisco protocol |
Conflict
|
| 500 | TCP, UDP | ISAKMP, IKE-Internet Key Exchange |
Offical
|
| 512 | TCP | exec, Remote Process Execution | |
| 512 | UDP | comsat, together with biff: notifies users of new c.q. yet unread e-mail | |
| 513 | TCP | Login | |
| 513 | UDP | Who | |
| 514 | TCP | rsh protocol - used to execute non-interactive commandline commands on a remote system and see the screen return | |
| 514 | UDP | syslog protocol - used for system logging |
Offical
|
| 515 | TCP | Line Printer Daemon protocol - used in LPD printer servers | |
| 517 | TCP | Talk | |
| 518 | UDP | NTalk | |
| 520 | TCP | efs | |
| 520 | UDP | Routing - RIP |
Offical
|
| 513 | UDP | Router | |
| 524 | TCP, UDP | NCP (NetWare Core Protocol) is used for a variety things such as access to primary NetWare server resources, Time Synchronization, etc. |
Offical
|
| 525 | UDP | Timed, Timeserver | |
| 530 | TCP, UDP | RPC |
Offical
|
| 531 | TCP, UDP | AOL Instant Messenger, IRC | |
| 532 | TCP | netnews | |
| 533 | UDP | netwall, For Emergency Broadcasts | |
| 540 | TCP | UUCP (Unix-to-Unix Copy Protocol) | |
| 542 | TCP, UDP | commerce (Commerce Applications) | |
| 543 | TCP | klogin, Kerberos login | |
| 544 | TCP | kshell, Kerberos Remote shell | |
| 546 | TCP, UDP | DHCPv6 client | |
| 547 | TCP, UDP | DHCPv6 server | |
| 548 | TCP | AFP (Apple Filing Protocol) | |
| 550 | UDP | new-rwho, new-who | |
| 554 | TCP, UDP | RTSP (Real Time Streaming Protocol) |
Offical
|
| 556 | TCP | Remotefs, rfs, rfs_server | |
| 560 | UDP | rmonitor, Remote Monitor | |
| 561 | UDP | monitor | |
| 563 | TCP, UDP | NNTP protocol over TLS/SSL (NNTPS) |
Offical
|
| 587 | TCP | email message submission (SMTP) (RFC 2476) |
Offical
|
| 591 | TCP | FileMaker 6.0 Web Sharing (HTTP Alternate, see port 80) |
Offical
|
| 593 | TCP, UDP | HTTP RPC Ep Map |
Offical
|
| 604 | TCP | TUNNEL | |
| 631 | TCP, UDP | IPP, Internet Printing Protocol | |
| 636 | TCP, UDP | LDAP over SSL (encrypted transmission) |
Offical
|
| 639 | TCP, UDP | MSDP, Multicast Source Discovery Protocol | |
| 646 | TCP | LDP, Label Distribution Protocol | |
| 647 | TCP | DHCP Failover Protocol | |
| 648 | TCP | RRP, Registry Registrar Protocol | |
| 652 | TCP | DTCP, Dynamic Tunnel Configuration Protocol | |
| 654 | TCP | AODV, Ad hoc On-Demand Distance Vector | |
| 665 | TCP | sun-dr, Remote Dynamic Reconfiguration |
Unoffical
|
| 666 | UDP | Doom, First online FPS | |
| 674 | TCP | ACAP, Application Configuration Access Protocol | |
| 691 | TCP | MS Exchange Routing |
Offical
|
| 692 | TCP | Hyperwave-ISP | |
| 695 | TCP | IEEE-MMS-SSL | |
| 698 | TCP | OLSR, Optimized Link State Routing | |
| 699 | TCP | Access Network | |
| 700 | TCP | EPP, Extensible Provisioning Protocol | |
| 701 | TCP | LMP, Link Management Protocol. | |
| 702 | TCP | IRIS over BEEP | |
| 706 | TCP | SILC, Secure Internet Live Conferencing | |
| 711 | TCP | TDP, Tag Distribution Protocol | |
| 712 | TCP | TBRPF, Topology Broadcast based on Reverse-Path Forwarding | |
| 720 | TCP | SMQP, Simple Message Queue Protocol | |
| 749 | TCP, UDP | kerberos-adm, Kerberos administration | |
| 750 | UDP | Kerberos version IV | |
| 782 | TCP | Conserver serial-console management server | |
| 829 | TCP | CMP (Certificate Management Protocol) | |
| 860 | TCP | iSCSI | |
| 873 | TCP | rsync File synchronisation protocol |
Offical
|
| 901 | TCP | Samba Web Administration Tool (SWAT) |
Unoffical
|
| 902 | VMware Server |
Unoffical
|
|
| 911 | TCP | Network Console on Acid (NCA) - local tty redirection over OpenSSH | |
| 981 | TCP | SofaWare Technologies Remote HTTPS management for firewall devices running embedded Checkpoint Firewall-1 software |
Unoffical
|
| 989 | TCP, UDP | FTP Protocol (data) over TLS/SSL |
Offical
|
| 990 | TCP, UDP | FTP Protocol (control) over TLS/SSL |
Offical
|
| 991 | TCP, UDP | NAS (Netnews Admin System) | |
| 992 | TCP, UDP | Telnet protocol over TLS/SSL |
Offical
|
| 993 | TCP | IMAP4 over SSL (encrypted transmission) |
Offical
|
| 995 | TCP | POP3 over SSL (encrypted transmission) |
Offical
|
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