Top 1000 Well Known Ports
https://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
Well-known ports | |||||
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Port | TCP | UDP | IANA status[1] | Description | SCTP |
0 | Reserved | Reserved | Official | ||
N/A | N/A | Unofficial | |||
1 | Yes | Assigned | Official | TCP Port Service Multiplexer (TCPMUX). Historic. Both TCP and UDP have been assigned to TCPMUX by IANA,[1] but by design only TCP is specified.[6] | |
5 | Assigned | Assigned | Official | Remote Job Entry[7] was historically using socket 5 in its old socket form, while MIB PIM has identified it as TCP/5[8] and IANA has assigned both TCP and UDP 5 to it. | |
7 | Yes | Yes | Official | ||
9 | Yes | Yes | Official | Yes [12] | |
No | Yes | Unofficial | |||
11 | Yes | Yes | Official | ||
13 | Yes | Yes | Official | ||
15 | Yes | No | Unofficial | ||
17 | Yes | Yes | Official | Quote of the Day (QOTD)[17] | |
18 | Yes | Yes | Official | ||
19 | Yes | Yes | Official | Character Generator Protocol (CHARGEN)[20] | |
20 | Yes | Assigned | Official | File Transfer Protocol (FTP) data transfer[10] | Yes [12] |
21 | Yes | Assigned | Official | File Transfer Protocol (FTP) control (command)[10][12][21][22] | Yes[12] |
22 | Yes | Assigned | Official | Secure Shell (SSH),[10] secure logins, file transfers (scp, sftp) and port forwarding | Yes [12] |
23 | Yes | Assigned | Official | ||
25 | Yes | Assigned | Official | Simple Mail Transfer Protocol (SMTP),[10][24] used for email routing between mail servers | |
37 | Yes | Yes | Official | ||
42 | Assigned | Yes | Official | ||
43 | Yes | Assigned | Official | ||
47 | Reserved | Reserved | Official | ||
49 | Yes | Yes | Official | ||
51 | Reserved | Reserved | Official | Historically used for Interface Message Processor logical address management,[32] entry has been removed by IANA on 2013-05-25 | |
52 | Assigned | Assigned | Official | Xerox Network Systems (XNS) Time Protocol. Despite this port being assigned by IANA, the service is meant to work on SPP (ancestor of IPX/SPX), instead of TCP/IP.[33] | |
53 | Yes | Yes | Official | ||
54 | Assigned | Assigned | Official | ||
56 | Assigned | Assigned | Official | ||
58 | Assigned | Assigned | Official | ||
61 | Reserved | Reserved | Official | Historically assigned to the NIFTP-Based Mail protocol,[35] but was never documented in the related IEN.[36] The port number entry was removed from IANA's registry on 2017-05-18.[1] | |
67 | Assigned | Yes | Official | Bootstrap Protocol (BOOTP) server;[10] also used by Dynamic Host Configuration Protocol (DHCP) | |
68 | Assigned | Yes | Official | Bootstrap Protocol (BOOTP) client;[10] also used by Dynamic Host Configuration Protocol (DHCP) | |
69 | Assigned | Yes | Official | ||
70 | Yes | Assigned | Official | ||
71–74 | Yes | Yes | Official | ||
79 | Yes | Assigned | Official | ||
80 | Yes | Assigned | Official | Yes [12] | |
No | Yes | Unofficial | QUIC, a transport protocol over UDP (still in draft as of April 2020), using stream multiplexing, encryption by default with TLS, and currently supporting HTTP/2.[49] QUIC has been renamed to HTTP/3, which is currently an Internet Draft. | ||
81 | Yes | Unofficial | |||
82 | Yes | Unofficial | TorPark control[verification needed] | ||
83 | Yes | Assigned | Official | MIT ML Device, networking file system [50] | |
88 | Yes | Assigned | Official | ||
90 | Yes | Yes | Unofficial | ||
95 | Yes | Assigned | Official | SUPDUP, terminal-independent remote login [53] | |
101 | Yes | Assigned | Official | ||
102 | Yes | Assigned | Official | ||
104 | Yes | Yes | Official | Digital Imaging and Communications in Medicine (DICOM; also port 11112) | |
105 | Yes | Yes | Official | ||
107 | Yes | Yes | Official | Remote User Telnet Service (RTelnet)[58] | |
108 | Yes | Yes | Official | IBM Systems Network Architecture (SNA) gateway access server | |
109 | Yes | Assigned | Official | Post Office Protocol, version 2 (POP2)[59] | |
110 | Yes | Assigned | Official | ||
111 | Yes | Yes | Official | Open Network Computing Remote Procedure Call (ONC RPC, sometimes referred to as Sun RPC) | |
113 | Yes | No | Official | ||
Yes | Assigned | Official | Authentication Service (auth), the predecessor to identification protocol. Used to determine a user's identity of a particular TCP connection.[63] | ||
115 | Yes | Assigned | Official | ||
117 | Yes | Yes | Official | UUCP Mapping Project (path service)[citation needed] | |
118 | Yes | Yes | Official | ||
119 | Yes | Assigned | Official | Network News Transfer Protocol (NNTP),[10] retrieval of newsgroup messages[65][66] | |
123 | Assigned | Yes | Official | Network Time Protocol (NTP), used for time synchronization[10] | |
126 | Yes | Yes | Official | Formerly Unisys Unitary Login, renamed by Unisys to NXEdit. Used by Unisys Programmer's Workbench for Clearpath MCP, an IDE for Unisys MCP software development | |
135 | Yes | Yes | Official | ||
Yes | Yes | Official | |||
137 | Yes | Yes | Official | NetBIOS Name Service, used for name registration and resolution[68][69] | |
138 | Assigned | Yes | Official | ||
139 | Yes | Assigned | Official | ||
143 | Yes | Assigned | Official | Internet Message Access Protocol (IMAP),[10] management of electronic mail messages on a server[70] | |
152 | Yes | Yes | Official | ||
153 | Yes | Yes | Official | Simple Gateway Monitoring Protocol (SGMP), a protocol for remote inspection and alteration of gateway management information[72] | |
156 | Yes | Yes | Official | ||
158 | Yes | Yes | Official | Distributed Mail System Protocol (DMSP, sometimes referred to as Pcmail)[73][importance?] | |
161 | Assigned | Yes | Official | ||
162 | Yes | Yes | Official | Simple Network Management Protocol Trap (SNMPTRAP)[74][75][citation needed] | |
170 | Yes | Yes | Official | Network PostScript print server | |
177 | Yes | Yes | Official | X Display Manager Control Protocol (XDMCP), used for remote logins to an X Display Manager server[76][self-published source] | |
179 | Yes | Assigned | Official | Border Gateway Protocol (BGP),[77] used to exchange routing and reachability information among autonomous systems (AS) on the Internet | Yes [12] |
194 | Yes | Yes | Official | Internet Relay Chat (IRC)[78] | |
199 | Yes | Yes | Official | ||
201 | Yes | Yes | Official | AppleTalk Routing Maintenance | |
209 | Yes | Assigned | Official | ||
210 | Yes | Yes | Official | ||
213 | Yes | Yes | Official | ||
218 | Yes | Yes | Official | Message posting protocol (MPP) | |
220 | Yes | Yes | Official | Internet Message Access Protocol (IMAP), version 3 | |
225–241 | Reserved | Reserved | Official | ||
249–255 | Reserved | Reserved | Official | ||
259 | Yes | Yes | Official | Efficient Short Remote Operations (ESRO) | |
262 | Yes | Yes | Official | Arcisdms | |
264 | Yes | Yes | Official | ||
280 | Yes | Yes | Official | http-mgmt | |
300 | Yes | Unofficial | ThinLinc Web Access | ||
308 | Yes | Official | Novastor Online Backup | ||
311 | Yes | Assigned | Official | Mac OS X Server Admin[10] (officially AppleShare IP Web administration[1]) | |
318 | Yes | Yes | Official | PKIX Time Stamp Protocol (TSP) | |
319 | Yes | Official | Precision Time Protocol (PTP) event messages | ||
320 | Yes | Official | Precision Time Protocol (PTP) general messages | ||
350 | Yes | Yes | Official | Mapping of Airline Traffic over Internet Protocol (MATIP) type A | |
351 | Yes | Yes | Official | MATIP type B | |
356 | Yes | Yes | Official | cloanto-net-1 (used by Cloanto Amiga Explorer and VMs) | |
366 | Yes | Yes | Official | On-Demand Mail Relay (ODMR) | |
369 | Yes | Yes | Official | Rpc2portmap | |
370 | Yes | Yes | Official | codaauth2, Coda authentication server | |
Yes | Official | ||||
371 | Yes | Yes | Official | ClearCase albd | |
383 | Yes | Yes | Official | HP data alarm manager | |
384 | Yes | Yes | Official | A Remote Network Server System | |
387 | Yes | Yes | Official | ||
388 | Yes | Assigned | Official | Unidata LDM near real-time data distribution protocol[83][self-published source][84][self-published source] | |
389 | Yes | Assigned | Official | ||
399 | Yes | Yes | Official | Digital Equipment Corporation DECnet+ (Phase V) over TCP/IP (RFC1859) | |
401 | Yes | Yes | Official | ||
427 | Yes | Yes | Official | ||
433 | Yes | Yes | Official | NNSP, part of Network News Transfer Protocol | |
434 | Yes | Yes | Official | ||
443 | Yes | Assigned | Official | Yes [12] | |
No | Yes | Unofficial | Quick UDP Internet Connections (QUIC), a transport protocol over UDP (still in draft as of July 2018), using stream multiplexing, encryption by default with TLS, and currently supporting HTTP/2.[49] | ||
444 | Yes | Yes | Official | ||
445 | Yes | Yes | Official | Microsoft-DS (Directory Services) Active Directory,[85] Windows shares | |
Yes | Assigned | Official | |||
464 | Yes | Yes | Official | Kerberos Change/Set password | |
465 | Yes | No | Official | URL Rendezvous Directory for SSM (Cisco protocol)[importance?] | |
Yes | No | Official | |||
475 | Yes | Yes | Official | tcpnethaspsrv, Aladdin Knowledge Systems Hasp services | |
491 | Yes | Unofficial | |||
497 | Yes | Yes | Official | ||
500 | Assigned | Yes | Official | ||
502 | Yes | Yes | Official | Modbus Protocol | |
504 | Yes | Yes | Official | Citadel, multiservice protocol for dedicated clients for the Citadel groupware system | |
510 | Yes | Yes | Official | FirstClass Protocol (FCP), used by FirstClass client/server groupware system | |
512 | Yes | Official | Rexec, Remote Process Execution | ||
Yes | Official | comsat, together with biff | |||
513 | Yes | Official | |||
Yes | Official | Who[87] | |||
514 | Yes | Unofficial | Remote Shell, used to execute non-interactive commands on a remote system (Remote Shell, rsh, remsh) | ||
No | Yes | Official | |||
515 | Yes | Assigned | Official | Line Printer Daemon (LPD),[10] print service | |
517 | Yes | Official | Talk | ||
518 | Yes | Official | NTalk | ||
520 | Yes | Official | efs, extended file name server | ||
Yes | Official | ||||
521 | Yes | Official | |||
524 | Yes | Yes | Official | NetWare Core Protocol (NCP) is used for a variety things such as access to primary NetWare server resources, Time Synchronization, etc. | |
525 | Yes | Official | Timed, Timeserver | ||
530 | Yes | Yes | Official | Remote procedure call (RPC) | |
532 | Yes | Assigned | Official | netnews[10] | |
533 | Yes | Official | netwall, For Emergency Broadcasts | ||
540 | Yes | Official | Unix-to-Unix Copy Protocol (UUCP) | ||
542 | Yes | Yes | Official | commerce (Commerce Applications) | |
543 | Yes | Official | klogin, Kerberos login | ||
544 | Yes | Official | kshell, Kerberos Remote shell | ||
546 | Yes | Yes | Official | DHCPv6 client | |
547 | Yes | Yes | Official | DHCPv6 server | |
548 | Yes | Assigned | Official | Apple Filing Protocol (AFP) over TCP[10] | |
550 | Yes | Yes | Official | new-rwho, new-who[87] | |
554 | Yes | Yes | Official | ||
556 | Yes | Official | Remotefs, RFS, rfs_server | ||
560 | Yes | Official | rmonitor, Remote Monitor | ||
561 | Yes | Official | monitor | ||
563 | Yes | Yes | Official | ||
564 | Yes | Unofficial | |||
585 | Port 993 | ? | Unofficial | Legacy use of Internet Message Access Protocol over TLS/SSL (IMAPS), now in use at port 993.[88] | |
587 | Yes | Assigned | Official | ||
591 | Yes | Official | FileMaker 6.0 (and later) Web Sharing (HTTP Alternate, also see port 80) | ||
593 | Yes | Yes | Official | HTTP RPC Ep Map, Remote procedure call over Hypertext Transfer Protocol, often used by Distributed Component Object Model services and Microsoft Exchange Server | |
601 | Yes | Official | Reliable Syslog Service — used for system logging | ||
604 | Yes | Official | TUNNEL profile,[90] a protocol for BEEP peers to form an application layer tunnel | ||
623 | Yes | Official | ASF Remote Management and Control Protocol (ASF-RMCP) & IPMI Remote Management Protocol | ||
625 | Yes | No | Unofficial | Open Directory Proxy (ODProxy)[10] | |
631 | Yes | Yes | Official | ||
Yes | Yes | Unofficial | Common Unix Printing System (CUPS) administration console (extension to IPP) | ||
635 | Yes | Yes | Official | RLZ DBase | |
636 | Yes | Assigned | Official | Lightweight Directory Access Protocol over TLS/SSL (LDAPS)[10] | |
639 | Yes | Yes | Official | ||
641 | Yes | Yes | Official | SupportSoft Nexus Remote Command (control/listening), a proxy gateway connecting remote control traffic | |
643 | Yes | Yes | Official | SANity | |
646 | Yes | Yes | Official | Label Distribution Protocol (LDP), a routing protocol used in MPLS networks | |
647 | Yes | Official | DHCP Failover protocol[91] | ||
648 | Yes | Official | Registry Registrar Protocol (RRP)[92] | ||
651 | Yes | Yes | Official | IEEE-MMS | |
653 | Yes | Yes | Official | SupportSoft Nexus Remote Command (data), a proxy gateway connecting remote control traffic | |
654 | Yes | Official | Media Management System (MMS) Media Management Protocol (MMP)[93] | ||
655 | Yes | Yes | Official | Tinc VPN daemon | |
657 | Yes | Yes | Official | IBM RMC (Remote monitoring and Control) protocol, used by System p5 AIX Integrated Virtualization Manager (IVM)[94] and Hardware Management Console to connect managed logical partitions (LPAR) to enable dynamic partition reconfiguration | |
660 | Yes | Assigned | Official | Mac OS X Server administration,[1] version 10.4 and earlier[10] | |
Yes | Yes | Official | Doom, first online first-person shooter | ||
Yes | Unofficial | airserv-ng, aircrack-ng's server for remote-controlling wireless devices | |||
674 | Yes | Official | |||
688 | Yes | Yes | Official | REALM-RUSD (ApplianceWare Server Appliance Management Protocol) | |
690 | Yes | Yes | Official | Velneo Application Transfer Protocol (VATP) | |
691 | Yes | Official | |||
694 | Yes | Yes | Official | Linux-HA high-availability heartbeat | |
695 | Yes | Official | |||
698 | Yes | Official | Optimized Link State Routing (OLSR) | ||
700 | Yes | Official | Extensible Provisioning Protocol (EPP), a protocol for communication between domain name registries and registrars (RFC 5734) | ||
701 | Yes | Official | Link Management Protocol (LMP),[96] a protocol that runs between a pair of nodes and is used to manage traffic engineering (TE) links | ||
702 | Yes | Official | |||
706 | Yes | Official | |||
711 | Yes | Official | |||
712 | Yes | Official | |||
749 | Yes | Yes | Official | Kerberos (protocol) administration[10] | |
750 | Yes | Official | kerberos-iv, Kerberos version IV | ||
751 | Yes | Yes | Unofficial | kerberos_master, Kerberos authentication | |
752 | Yes | Unofficial | passwd_server, Kerberos password (kpasswd) server | ||
753 | Yes | Yes | Official | Reverse Routing Header (RRH)[104] | |
Yes | Unofficial | userreg_server, Kerberos userreg server | |||
754 | Yes | Yes | Official | tell send | |
Yes | Unofficial | krb5_prop, Kerberos v5 slave propagation | |||
760 | Yes | Yes | Unofficial | krbupdate [kreg], Kerberos registration | |
782 | Yes | Unofficial | Conserver serial-console management server | ||
783 | Yes | Unofficial | SpamAssassin spamd daemon | ||
800 | Yes | Yes | Official | mdbs-daemon | |
802 | Yes | Yes | Official | ||
808 | Yes | Unofficial | Microsoft Net.TCP Port Sharing Service | ||
829 | Yes | Assigned | Official | ||
830 | Yes | Yes | Official | ||
831 | Yes | Yes | Official | NETCONF over BEEP | |
832 | Yes | Yes | Official | ||
833 | Yes | Yes | Official | NETCONF for SOAP over BEEP | |
843 | Yes | Unofficial | |||
847 | Yes | Official | DHCP Failover protocol | ||
848 | Yes | Yes | Official | Group Domain Of Interpretation (GDOI) protocol | |
853 | Yes | Yes | Official | ||
860 | Yes | Official | |||
861 | Yes | Yes | Official | OWAMP control (RFC 4656) | |
862 | Yes | Yes | Official | TWAMP control (RFC 5357) | |
873 | Yes | Official | rsync file synchronization protocol | ||
888 | Yes | Unofficial | cddbp, CD DataBase (CDDB) protocol (CDDBP) | ||
Yes | Unofficial | IBM Endpoint Manager Remote Control | |||
897 | Yes | Yes | Unofficial | Brocade SMI-S RPC | |
898 | Yes | Yes | Unofficial | Brocade SMI-S RPC SSL | |
902 | Yes | Yes | Unofficial | ||
903 | Yes | Unofficial | |||
953 | Yes | Reserved | Official | ||
981 | Yes | Unofficial | Remote HTTPS management for firewall devices running embedded Check Point VPN-1 software[112] | ||
987 | Yes | Unofficial | |||
989 | Yes | Yes | Official | ||
990 | Yes | Yes | Official | ||
991 | Yes | Yes | Official | ||
992 | Yes | Yes | Official | ||
993 | Yes | Assigned | Official | Internet Message Access Protocol over TLS/SSL (IMAPS)[10] | |
994 | Reserved | Reserved | Official | ||
Maybe | Maybe | Unofficial | Internet Relay Chat over TLS/SSL (IRCS). Previously assigned, but not used in common practice. | ||
995 | Yes | Yes | Official | Post Office Protocol 3 over TLS/SSL (POP3S)[10] | |
1010 | Yes | Unofficial | ThinLinc web-based administration interface[115][self-published source?] | ||
1011–1020 | Reserved | Reserved | Official | ||
1023 | Reserved | Reserved | Official | ||
Yes | Yes | Unofficial |
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