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List of TCP and UDP port numbers


List of TCP and UDP port numbers


This is a list of Internet socket port numbers used by protocols of the Transport Layer of the Internet Protocol Suite for the establishment 
of host-to-host communications.
Originally, these port numbers were used by the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP), but are
 used also for the Stream Control Transmission Protocol(SCTP), and the Datagram Congestion Control Protocol (DCCP). SCTP and
DCCP services usually use a port number that matches the service of the corresponding TCP or UDP implementation if they exist. The
 Internet Assigned Numbers Authority (IANA) is responsible for maintaining the official assignments of port numbers for specific uses.[1]
 However, many unofficial uses of both well-known and registered port numbers occur in practice.


The port numbers are divided into three ranges: the well-known ports, the registered ports, and the dynamic or private ports. The well-known ports are those from 0 through 1023. Examples include:

UseDescriptionColor
OfficialPort is registered with IANA for the applicationwhite
UnofficialPort is not registered with IANA for the application  blue
Multiple useMultiple applications are known to use this port.yellow
Table legend 
Well-known ports

The port numbers in the range from 0 to 1023 are the well-known ports. They are used by system processes that provide widely-used 
types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network
 socket to an IP address using one of the well-known ports.
PortTCPUDPDescriptionStatus
0UDPReservedOfficial
1TCPUDPTCP Port Service Multiplexer (TCPMUX)Official
2TCPUDPCompressNET[2] Management Utility[3]Official
3TCPUDPCompressNET[2] Compression Process[4]Official
4TCPUDPUnassignedOfficial
5TCPUDPRemote Job EntryOfficial
7TCPUDPEcho ProtocolOfficial
8TCPUDPUnassignedOfficial
9TCPUDPDiscard ProtocolOfficial
10TCPUDPUnassignedOfficial
11TCPUDPActive Users (systat service)[5][6]Official
12TCPUDPUnassignedOfficial
13TCPUDPDaytime Protocol (RFC 867)Official
14TCPUDPUnassignedOfficial
15TCPUDPPreviously netstat service[5]Unofficial
16TCPUDPUnassignedOfficial
17TCPUDPQuote of the DayOfficial
18TCPUDPMessage Send ProtocolOfficial
19TCPUDPCharacter Generator Protocol (CHARGEN)Official
20TCPFTP—data transferOfficial
21TCPFTP—control (command)Official
22TCPSecure Shell (SSH)—used for secure logins, file transfers (scpsftp) and port forwardingOfficial
23TCPTelnet protocol—unencrypted text communicationsOfficial
24TCPUDPPriv-mail : any private mail system.Official
25TCPSimple Mail Transfer Protocol (SMTP)—used for e-mail routing between mail serversOfficial
26TCPUDPUnassignedOfficial
27TCPUDPNSW User System FEOfficial
29TCPUDPMSG ICPOfficial
33TCPUDPDisplay Support ProtocolOfficial
35TCPUDPAny private printer server protocolOfficial
37TCPUDPTIME protocolOfficial
39TCPUDPResource Location Protocol[7] (RLP)—used for determining the location of higher level services from hosts on a networkOfficial
40TCPUDPUnassignedOfficial
42TCPUDPARPA Host Name Server ProtocolOfficial
42TCPUDPWindows Internet Name ServiceUnofficial
43TCPWHOIS protocolOfficial
47TCPUDPNI FTP[7]Official
49TCPUDPTACACS Login Host protocolOfficial
50TCPUDPRemote Mail Checking Protocol[8]Official
51TCPUDPIMP Logical Address MaintenanceOfficial
52TCPUDPXNS (Xerox Network Systems) Time ProtocolOfficial
53TCPUDPDomain Name System (DNS)Official
54TCPUDPXNS (Xerox Network Systems) ClearinghouseOfficial
55TCPUDPISI Graphics Language (ISI-GL)Official
56TCPUDPXNS (Xerox Network Systems) AuthenticationOfficial
56TCPUDPRoute Access Protocol (RAP)[9]Unofficial
57TCPMail Transfer Protocol (RFC 780)Official
58TCPUDPXNS (Xerox Network Systems) MailOfficial
67UDPBootstrap Protocol (BOOTP) Server; also used by Dynamic Host Configuration Protocol (DHCP)Official
68UDPBootstrap Protocol (BOOTP) Client; also used by Dynamic Host Configuration Protocol (DHCP)Official
69UDPTrivial File Transfer Protocol (TFTP)Official
70TCPGopher protocolOfficial
71TCPNETRJS protocolOfficial
72TCPNETRJS protocolOfficial
73TCPNETRJS protocolOfficial
74TCPNETRJS protocolOfficial
79TCPFinger protocolOfficial
80TCPHypertext Transfer Protocol (HTTP)Official[10]
81TCPTorparkOnion routingUnofficial
82UDPTorpark—ControlUnofficial
88TCPUDPKerberos—authentication systemOfficial
90TCPUDPdnsix (DoD Network Security for Information Exchange) Securit Attribute Token MapOfficial
90TCPUDPPointCast (dotcom)Unofficial
99TCPWIP Message protocolUnofficial
101TCPNIC host nameOfficial
102TCPISO-TSAP (Transport Service Access Point) Class 0 protocol[11]Official
104TCPUDPACR/NEMA Digital Imaging and Communications in MedicineOfficial
105TCPUDPCCSO Nameserver Protocol (Qi/Ph)Official
107TCPRemote TELNET Service[12] protocolOfficial
108TCPUDPSNA Gateway Access Server [1]Official
109TCPPost Office Protocol v2 (POP2)Official
110TCPPost Office Protocol v3 (POP3)Official
111TCPUDPONC RPC (SunRPC)Official
113TCPident—Authentication Service/Identification Protocol,[13] used by IRC servers to identify usersOfficial
113UDPAuthentication Service[13] (auth)Official
115TCPSimple File Transfer Protocol (SFTP)Official
117TCPUUCP Path ServiceOfficial
118TCPUDPSQL (Structured Query Language) ServicesOfficial
119TCPNetwork News Transfer Protocol (NNTP)—retrieval of newsgroup messagesOfficial
123UDPNetwork Time Protocol (NTP)—used for time synchronizationOfficial
135TCPUDPDCE endpoint resolutionOfficial
135TCPUDPMicrosoft EPMAP (End Point Mapper), also known as DCE/RPC Locator service,[14] used to remotely manage services including DHCP serverDNSserver and WINS. Also used by DCOMUnofficial
137TCPUDPNetBIOS NetBIOS Name ServiceOfficial
138TCPUDPNetBIOS NetBIOS Datagram ServiceOfficial
139TCPUDPNetBIOS NetBIOS Session ServiceOfficial
143TCPInternet Message Access Protocol (IMAP)—management of email messagesOfficial
152TCPUDPBackground File Transfer Program (BFTP)[15]Official
153TCPUDPSGMP, Simple Gateway Monitoring ProtocolOfficial
156TCPUDPSQL ServiceOfficial
158TCPUDPDMSP, Distributed Mail Service Protocol[16]Unofficial
161UDPSimple Network Management Protocol (SNMP)Official
162TCPUDPSimple Network Management Protocol Trap (SNMPTRAP)[17]Official
170TCPPrint-srv, Network PostScriptOfficial
175TCPVMNET (IBM z/VM, z/OS & z/VSE - Network Job Entry(NJE))Official
177TCPUDPX Display Manager Control Protocol (XDMCP)Official
179TCPBGP (Border Gateway Protocol)Official
194TCPUDPInternet Relay Chat (IRC)Official
199TCPUDPSMUXSNMP Unix MultiplexerOfficial
201TCPUDPAppleTalk Routing MaintenanceOfficial
209TCPUDPThe Quick Mail Transfer ProtocolOfficial
210TCPUDPANSI Z39.50Official
213TCPUDPInternetwork Packet Exchange (IPX)Official
218TCPUDPMessage posting protocol (MPP)Official
220TCPUDPInternet Message Access Protocol (IMAP), version 3Official
259TCPUDPESRO, Efficient Short Remote OperationsOfficial
264TCPUDPBGMP, Border Gateway Multicast ProtocolOfficial
280TCPUDPhttp-mgmtOfficial
308TCPNovastor Online BackupOfficial
311TCPMac OS X Server Admin (officially AppleShare IP Web administration)Official
318TCPUDPPKIX TSP, Time Stamp ProtocolOfficial
319UDPPrecision time protocol event messagesOfficial
320UDPPrecision time protocol general messagesOfficial
350TCPUDPMATIP-Type A, Mapping of Airline Traffic over Internet ProtocolOfficial
351TCPUDPMATIP-Type B, Mapping of Airline Traffic over Internet ProtocolOfficial
366TCPUDPODMR, On-Demand Mail RelayOfficial
369TCPUDPRpc2portmapOfficial
370TCPcodaauth2—Coda authentication serverOfficial
370UDPcodaauth2—Coda authentication serverOfficial
370UDPsecurecast1—Outgoing packets to NAI's servers [18][dead link]Unofficial
371TCPUDPClearCase albdOfficial
383TCPUDPHP data alarm managerOfficial
384TCPUDPA Remote Network Server SystemOfficial
387TCPUDPAURP, AppleTalk Update-based Routing Protocol[19]Official
389TCPUDPLightweight Directory Access Protocol (LDAP)Official
401TCPUDPUPS Uninterruptible Power SupplyOfficial
427TCPUDPService Location Protocol (SLP)Official
443TCPHTTPS (Hypertext Transfer Protocol over SSL/TLS)Official
444TCPUDPSNPP, Simple Network Paging Protocol (RFC 1568)Official
445TCPMicrosoft-DS Active Directory, Windows sharesOfficial
445TCPMicrosoft-DS SMB file sharingOfficial
464TCPUDPKerberos Change/Set passwordOfficial
465TCPURL Rendesvous Directory for SSM (Cisco protocol)Official
475TCPUDPtcpnethaspsrv (Aladdin Knowledge Systems Hasp services, TCP/IP version)Official
497TCPDantz RetrospectOfficial
500UDPInternet Security Association and Key Management Protocol (ISAKMP)Official
502TCPUDPModbus, ProtocolUnofficial
504TCPUDPCitadel—multiservice protocol for dedicated clients for the Citadel groupware systemOfficial
512TCPRexec, Remote Process ExecutionOfficial
512UDPcomsat, together with biffOfficial
513TCPrloginOfficial
513UDPWho[20]Official
514TCPShell—used to execute non-interactive commands on a remote system (Remote Shell, rsh, remsh)Official
514UDPSyslog—used for system loggingOfficial
515TCPLine Printer Daemon—print serviceOfficial
517UDPTalkOfficial
518UDPNTalkOfficial
520TCPefs, extended file name serverOfficial
520UDPRouting Information Protocol (RIP)Official
524TCPUDPNetWare Core Protocol (NCP) is used for a variety things such as access to primary NetWare server resources, Time Synchronization, etc.Official
525UDPTimed, TimeserverOfficial
530TCPUDPRPCOfficial
531TCPUDPAOL Instant MessengerUnofficial
532TCPnetnewsOfficial
533UDPnetwall, For Emergency BroadcastsOfficial
540TCPUUCP (Unix-to-Unix Copy Protocol)Official
542TCPUDPcommerce (Commerce Applications)Official
543TCPklogin, Kerberos loginOfficial
544TCPkshell, Kerberos Remote shellOfficial
545TCPOSIsoft PI (VMS), OSISoft PI Server Client AccessUnofficial
546TCPUDPDHCPv6 clientOfficial
547TCPUDPDHCPv6 serverOfficial
548TCPApple Filing Protocol (AFP) over TCPOfficial
550TCPUDPnew-rwho, new-who[20]Official
554TCPUDPReal Time Streaming Protocol (RTSP)Official
556TCPRemotefs, RFS, rfs_serverOfficial
560UDPrmonitor, Remote MonitorOfficial
561UDPmonitorOfficial
563TCPUDPNNTP protocol over TLS/SSL (NNTPS)Official
587TCPe-mail message submission[21] (SMTP)Official
591TCPFileMaker 6.0 (and later) Web Sharing (HTTP Alternate, also see port 80)Official
593TCPUDPHTTP RPC Ep Map, Remote procedure call over Hypertext Transfer Protocol, often used by Distributed Component Object Model services and Microsoft Exchange ServerOfficial
604TCPTUNNEL profile,[22] a protocol for BEEP peers to form an application layer tunnelOfficial
623UDPASF Remote Management and Control Protocol (ASF-RMCP)Official
631TCPUDPInternet Printing Protocol (IPP)Official
631TCPUDPCommon Unix Printing System (CUPS)Unofficial
635TCPUDPRLZ DBaseOfficial
636TCPUDPLightweight Directory Access Protocol over TLS/SSL (LDAPS)Official
639TCPUDPMSDP, Multicast Source Discovery ProtocolOfficial
641TCPUDPSupportSoft Nexus Remote Command (control/listening): A proxy gateway connecting remote control trafficOfficial
646TCPUDPLDP, Label Distribution Protocol, a routing protocol used in MPLS networksOfficial
647TCPDHCP Failover protocol[23]Official
648TCPRRP (Registry Registrar Protocol)[24]Official
651TCPUDPIEEE-MMSOfficial
653TCPUDPSupportSoft Nexus Remote Command (data): A proxy gateway connecting remote control trafficOfficial
654TCPMedia Management System (MMS) Media Management Protocol (MMP)[25]Official
657TCPUDPIBM RMC (Remote monitoring and Control) protocol, used by System p5 AIX Integrated Virtualization Manager (IVM)[26] and Hardware Management Console to connect managed logical partitions (LPAR) to enable dynamic partition reconfigurationOfficial
660TCPMac OS X Server administrationOfficial
666UDPDoom, first online first-person shooterOfficial
666TCPairserv-ngaircrack-ng's server for remote-controlling wireless devicesUnofficial
674TCPACAP (Application Configuration Access Protocol)Official
691TCPMS Exchange RoutingOfficial
694TCPUDPLinux-HA High availability HeartbeatOfficial
695TCPIEEE-MMS-SSL (IEEE Media Management System over SSL)[27]Official
698UDPOLSR (Optimized Link State Routing)Official
700TCPEPP (Extensible Provisioning Protocol), a protocol for communication between domain name registries and registrars (RFC 5734)Official
701TCPLMP (Link Management Protocol (Internet)),[28] a protocol that runs between a pair of nodes and is used to manage traffic engineering (TE) linksOfficial
702TCPIRIS[29][30] (Internet Registry Information Service) over BEEP (Blocks Extensible Exchange Protocol)[31] (RFC 3983)Official
706TCPSecure Internet Live Conferencing (SILC)Official
711TCPCisco Tag Distribution Protocol[32][33][34]—being replaced by the MPLS Label Distribution Protocol[35]Official
712TCPTopology Broadcast based on Reverse-Path Forwarding routing protocol (TBRPF) (RFC 3684)Official
749TCPUDPKerberos (protocol) administrationOfficial
750UDPkerberos-iv, Kerberos version IVOfficial
751TCPUDPkerberos_master, Kerberos authenticationUnofficial
752UDPpasswd_server, Kerberos Password (kpasswd) serverUnofficial
753TCPReverse Routing Header (rrh)[36]Official
753UDPReverse Routing Header (rrh)Official
753UDPuserreg_server, Kerberos userreg serverUnofficial
754TCPtell sendOfficial
754TCPkrb5_prop, Kerberos v5 slave propagationUnofficial
754UDPtell sendOfficial
760TCPUDPkrbupdate [kreg], Kerberos registrationUnofficial
782TCPConserver serial-console management serverUnofficial
783TCPSpamAssassin spamd daemonUnofficial
808TCPMicrosoft Net.TCP Port Sharing ServiceOfficial
829TCPCertificate Management Protocol[37]Unofficial
843TCPAdobe Flash[38]Official
847TCPDHCP Failover protocolOfficial
848TCPUDPGroup Domain Of Interpretation (GDOI) protocolOfficial
860TCPiSCSI (RFC 3720)Official
873TCPrsync file synchronisation protocolOfficial USA only
888TCPcddbp, CD DataBase (CDDB) protocol (CDDBP)Unofficial
897TCPUDPBrocade SMI-S RPCUnofficial
898TCPUDPBrocade SMI-S RPC SSLUnofficial
901TCPSamba Web Administration Tool (SWAT)Unofficial
901TCPVMware Virtual Infrastructure Client (UDP from server being managed to management console)Unofficial
901UDPVMware Virtual Infrastructure Client (UDP from server being managed to management console)Unofficial
902TCPideafarm-doorOfficial
902TCPVMware Server Console (TCP from management console to server being Managed)Unofficial
902UDPideafarm-doorOfficial
902UDPVMware Server Console (UDP from server being managed to management console)Unofficial
903TCPVMware Remote Console [39]Unofficial
904TCPVMware Server Alternate (if 902 is in use, i.e. SUSE linux)Unofficial
911TCPNetwork Console on Acid (NCA)—local tty redirection over OpenSSHUnofficial
944UDPNetwork File System (protocol) ServiceUnofficial
953TCPUDPDomain Name System (DNS) RNDC ServiceUnofficial
973UDPNetwork File System (protocol) over IPv6 ServiceUnofficial
981TCPSofaWare Technologies Remote HTTPS management for firewall devices running embedded Check Point FireWall-1 softwareUnofficial
989TCPUDPFTPS Protocol (data): FTP over TLS/SSLOfficial
990TCPUDPFTPS Protocol (control): FTP over TLS/SSLOfficial
991TCPUDPNAS (Netnews Administration System)[40]Official
992TCPUDPTELNET protocol over TLS/SSLOfficial
993TCPInternet Message Access Protocol over SSL (IMAPS)Official
995TCPPost Office Protocol 3 over TLS/SSL (POP3S)Official
999TCPScimoreDB Database SystemUnofficial
1002TCPOpsware agent (aka cogbot)Unofficial
1023TCPUDPReserved[1]Official

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