Port Numbers

Select desired number range:

0 - 511
512 - 1023
1024 - 14991500 - 19992000 - 24992500 - 29993000 - 34993500 - 39994000 - 46994700 - 53995400 - 64996500 - 79998000 - 999910000 - 1999920000 - 49151

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System Ports from 512 to 1023

PortService NameProtocolDescriptionComment
512execTCPremote process execution; authentication performed using passwords and UNIX login names
512biffUDPused by mail system to notify users of new mail received; currently receives messages only from processes on the same machine
513loginTCPremote login a la telnet; automatic authentication performed based on priviledged port numbers and distributed data bases which identify "authentication domains"
513whoUDPmaintains data bases showing who's logged in to machines on a local net and the load average of the machine
514shellTCPcmd like exec, but automatic authentication is performed as for login server
514syslogUDPReference: [RFC5426]
Modified: 2020-06-01
515printerTCP/UDPspooler
516videotexTCP/UDPvideotex
517talkTCP/UDPlike tenex link, but across machine - unfortunately, doesn't use link protocol (this is actually just a rendezvous port from which a tcp connection is established)
519utimeTCP/UDPunixtime
520efsTCPextended file name server
520routerUDPlocal routing process (on site); uses variant of Xerox NS routing information protocol - RIP
521ripngTCP/UDPripng
522ulpTCP/UDPULP
523ibm-db2TCP/UDPIBM-DB2
524ncpTCP/UDPNCP
525timedTCP/UDPtimeserver
526tempoTCP/UDPnewdate
527stxTCP/UDPStock IXChangeModified: 2022-01-25
528custixTCP/UDPCustomer IXChangeModified: 2022-01-25
529irc-servTCP/UDPIRC-SERV
530courierTCP/UDPrpc
531conferenceTCP/UDPchat
532netnewsTCP/UDPreadnews
533netwallTCP/UDPfor emergency broadcasts
534windreamTCP/UDPwindream Admin
535iiopTCP/UDPiiop
536opalis-rdvTCP/UDPopalis-rdv
537nmspTCP/UDPNetworked Media Streaming Protocol
538gdomapTCP/UDPgdomap
539apertus-ldpTCP/UDPApertus Technologies Load Determination
540uucpTCP/UDPuucpd
541uucp-rloginTCP/UDPuucp-rlogin
542commerceTCP/UDPcommerce
544kshellTCP/UDPkrcmd
545appleqtcsrvrTCP/UDPappleqtcsrvr
546dhcpv6-clientTCPDHCPv6 Client
546dhcpv6-clientUDPDHCPv6 ClientReference: [RFC8415]
Modified: 2018-05-21
547dhcpv6-serverTCPDHCPv6 ServerReference: [RFC5460]
Modified: 2018-05-21
547dhcpv6-serverUDPDHCPv6 ServerReference: [RFC8415]
Modified: 2018-05-21
548afpovertcpTCP/UDPAFP over TCP
549idfpTCP/UDPIDFP
550new-rwhoTCP/UDPnew-whoReference: [n/a]
551cybercashTCP/UDPcybercashReference: [RFC1898]
552devshr-ntsTCP/UDPDeviceShare
553pirpTCP/UDPpirp
554rtspTCP/UDPReal Time Streaming Protocol (RTSP)
556remotefsTCP/UDPrfs server
557openvms-sysipcTCP/UDPopenvms-sysipc
558sdnskmpTCP/UDPSDNSKMP
559teedtapTCP/UDPTEEDTAP
560rmonitorTCP/UDPrmonitord
562chshellTCP/UDPchcmd
563nntpsTCP/UDPnntp protocol over TLS/SSL (was snntp)Reference: [RFC4642]
Modified: 2018-07-06
5649pfsTCP/UDPplan 9 file service
565whoamiTCP/UDPwhoami
566streettalkTCP/UDPstreettalk
567banyan-rpcTCP/UDPbanyan-rpc
568ms-shuttleTCP/UDPmicrosoft shuttle
569ms-romeTCP/UDPmicrosoft rome
570meterTCP/UDPdemon
571meterTCP/UDPudemon
572sonarTCP/UDPsonar
573banyan-vipTCP/UDPbanyan-vip
574ftp-agentTCP/UDPFTP Software Agent System
575vemmiTCP/UDPVEMMI
576ipcdTCP/UDPipcd
577vnasTCP/UDPvnas
578ipddTCP/UDPipdd
579decbsrvTCP/UDPdecbsrv
580sntp-heartbeatTCP/UDPSNTP HEARTBEAT
581bdpTCP/UDPBundle Discovery Protocol
582scc-securityTCP/UDPSCC Security
583philips-vcTCP/UDPPhilips Video-Conferencing
584keyserverTCP/UDPKey Server
585De-registeredModified: 2006-04-25
586password-chgTCP/UDPPassword Change
587submissionTCP/UDPMessage SubmissionReference: [RFC6409]
Modified: 2011-11-17
588calTCP/UDPCAL
589eyelinkTCP/UDPEyeLink
590tns-cmlTCP/UDPTNS CML
591http-altTCP/UDPFileMaker, Inc. - HTTP Alternate (see Port 80)
592eudora-setTCP/UDPEudora Set
593http-rpc-epmapTCP/UDPHTTP RPC Ep Map
594tpipTCP/UDPTPIP
595cab-protocolTCP/UDPCAB Protocol
596smsdTCP/UDPSMSD
597ptcnameserviceTCP/UDPPTC Name Service
598sco-websrvrmg3TCP/UDPSCO Web Server Manager 3
599acpTCP/UDPAeolon Core Protocol
600ipcserverTCP/UDPSun IPC server
601syslog-connTCP/UDPReliable Syslog ServiceReference: [RFC3195]
602xmlrpc-beepTCP/UDPXML-RPC over BEEPReference: [RFC3529]
603idxpTCP/UDPIDXPReference: [RFC4767]
604tunnelTCP/UDPTUNNELReference: [RFC3620]
605soap-beepTCP/UDPSOAP over BEEPReference: [RFC4227]
606urmTCP/UDPCray Unified Resource Manager
607nqsTCP/UDPnqs
608sift-uftTCP/UDPSender-Initiated/Unsolicited File Transfer
609npmp-trapTCP/UDPnpmp-trap
610npmp-localTCP/UDPnpmp-local
611npmp-guiTCP/UDPnpmp-gui
612hmmp-indTCP/UDPHMMP Indication
613hmmp-opTCP/UDPHMMP Operation
614sshellTCP/UDPSSLshell
615sco-inetmgrTCP/UDPInternet Configuration Manager
616sco-sysmgrTCP/UDPSCO System Administration Server
617sco-dtmgrTCP/UDPSCO Desktop Administration Server
618dei-icdaTCP/UDPDEI-ICDA
619compaq-evmTCP/UDPCompaq EVM
620sco-websrvrmgrTCP/UDPSCO WebServer Manager
621escp-ipTCP/UDPESCP
622collaboratorTCP/UDPCollaborator
623oob-ws-httpTCPDMTF out-of-band web services management protocolRegistered: 2007-06
623asf-rmcpUDPASF Remote Management and Control Protocol
624cryptoadminTCP/UDPCrypto Admin
625dec-dlmTCPDEC DLM IANA assigned this well-formed service name as a replacement for "dec_dlm".
625dec_dlmTCPDEC DLM
625dec-dlmUDPDEC DLM IANA assigned this well-formed service name as a replacement for "dec_dlm".
625dec_dlmUDPDEC DLM
626asiaTCP/UDPASIA
627passgo-tivoliTCP/UDPPassGo Tivoli
628qmqpTCP/UDPQMQPModified: 2018-04-05
6293com-amp3TCP/UDP3Com AMP3
630rdaTCP/UDPRDA
631ippTCP/UDPIPP (Internet Printing Protocol)Reference: [RFC8011]
Modified: 2018-07-06
631ippsTCPInternet Printing Protocol over HTTPSReference: [RFC8011]
Registered: 2018-07-06
632bmppTCP/UDPbmpp
633servstatTCP/UDPService Status update (Sterling Software)
634ginadTCP/UDPginad
635rlzdbaseTCP/UDPRLZ DBase
636ldapsTCP/UDPldap protocol over TLS/SSL (was sldap)
637lanserverTCP/UDPlanserver
638mcns-secTCP/UDPmcns-sec
639msdpTCP/UDPMSDP
640entrust-spsTCP/UDPentrust-sps
641repcmdTCP/UDPrepcmd
642esro-emsdpTCP/UDPESRO-EMSDP V1.3
643sanityTCP/UDPSANity
644dwrTCP/UDPdwr
645psscTCP/UDPPSSC
646ldpTCP/UDPLDP
647dhcp-failoverTCPDHCP FailoverReference: [RFC8156]
Modified: 2018-05-21
647dhcp-failoverUDPDHCP Failover
648rrpTCP/UDPRegistry Registrar Protocol (RRP)
649cadview-3dTCP/UDPCadview-3d - streaming 3d models over the internet
650obexTCP/UDPOBEX
651ieee-mmsTCP/UDPIEEE MMS
652hello-portTCP/UDPHELLO_PORT
653repscmdTCP/UDPRepCmd
654aodvTCP/UDPAODV
655tincTCP/UDPTINC
656spmpTCP/UDPSPMP
657rmcTCP/UDPRMC
658tenfoldTCP/UDPTenFold
659RemovedModified: 2001-06-06
660mac-srvr-adminTCP/UDPMacOS Server Admin
661hapTCP/UDPHAP
662pftpTCP/UDPPFTP
663purenoiseTCP/UDPPureNoise
664oob-ws-httpsTCPDMTF out-of-band secure web services management protocolRegistered: 2007-06
664asf-secure-rmcpUDPASF Secure Remote Management and Control Protocol
665sun-drTCP/UDPSun DR
666doomTCP/UDPdoom Id Software
667discloseTCP/UDPcampaign contribution disclosures - SDR Technologies
668mecommTCP/UDPMeComm
669meregisterTCP/UDPMeRegister
670vacdsm-swsTCP/UDPVACDSM-SWS
671vacdsm-appTCP/UDPVACDSM-APP
672vpps-quaTCP/UDPVPPS-QUA
673cimplexTCP/UDPCIMPLEX
674acapTCP/UDPACAPModified: 2010-10-15
675dctpTCP/UDPDCTP
676vpps-viaTCP/UDPVPPS Via
677vppTCP/UDPVirtual Presence Protocol
678ggf-ncpTCP/UDPGNU Generation Foundation NCP
679mrmTCP/UDPMRM
680entrust-aaasTCP/UDPentrust-aaas
681entrust-aamsTCP/UDPentrust-aams
682xfrTCP/UDPXFR
683corba-iiopTCP/UDPCORBA IIOP
684corba-iiop-sslTCP/UDPCORBA IIOP SSL
685mdc-portmapperTCP/UDPMDC Port Mapper
686hcp-wismarTCP/UDPHardware Control Protocol Wismar
687asipregistryTCP/UDPasipregistry
688realm-rusdTCP/UDPApplianceWare managment protocol
689nmapTCP/UDPNMAP
690vatpTCP/UDPVelneo Application Transfer ProtocolModified: 2015-02-03
691msexch-routingTCP/UDPMS Exchange Routing
692hyperwave-ispTCP/UDPHyperwave-ISP
693connendpTCP/UDPalmanid Connection Endpoint
694ha-clusterTCP/UDPha-cluster
695ieee-mms-sslTCP/UDPIEEE-MMS-SSL
696rushdTCP/UDPRUSHD
697uuidgenTCP/UDPUUIDGEN
698olsrTCP/UDPOLSR
699accessnetworkTCP/UDPAccess Network
700eppTCP/UDPExtensible Provisioning ProtocolReference: [RFC5734]
701lmpTCP/UDPLink Management Protocol (LMP)Reference: [RFC4204]
702iris-beepTCP/UDPIRIS over BEEPReference: [RFC3983]
703Unassigned
704elcsdTCP/UDPerrlog copy/server daemon
705agentxTCP/UDPAgentX
706silcTCP/UDPSILC
707borland-dsjTCP/UDPBorland DSJ
708Unassigned
709entrust-kmshTCP/UDPEntrust Key Management Service Handler
710entrust-ashTCP/UDPEntrust Administration Service Handler
711cisco-tdpTCP/UDPCisco TDP
712tbrpfTCP/UDPTBRPFReference: [RFC3684]
713iris-xpcTCP/UDPIRIS over XPC
714iris-xpcsTCP/UDPIRIS over XPCSReference: [RFC4992]
715iris-lwzTCP/UDPIRIS-LWZReference: [RFC4993]
716panaUDPPANA MessagesReference: [RFC5191]
717-728Unassigned
729netviewdm1TCP/UDPIBM NetView DM/6000 Server/Client
730netviewdm2TCP/UDPIBM NetView DM/6000 send/tcp
731netviewdm3TCP/UDPIBM NetView DM/6000 receive/tcp
732-740Unassigned
741netgwTCP/UDPnetGW
742netrcsTCP/UDPNetwork based Rev. Cont. Sys.
743Unassigned
744flexlmTCP/UDPFlexible License Manager
745-746Unassigned
747fujitsu-devTCP/UDPFujitsu Device Control
748ris-cmTCP/UDPRussell Info Sci Calendar Manager
749kerberos-admTCP/UDPkerberos administration
750kerberos-ivUDPkerberos version iv
754tellTCP/UDPsend
755-757Unassigned
766Unassigned
767phonebookTCP/UDPphone
768Unassigned
774acmaint-dbdUDPIANA assigned this well-formed service name as a replacement for "acmaint_dbd".
775acmaint-transdUDPIANA assigned this well-formed service name as a replacement for "acmaint_transd".
777multiling-httpTCP/UDPMultiling HTTP
778-779Unassigned
781-785Unassigned
786UnassignedModified: 2002-05-08
787UnassignedModified: 2002-10-08
788-799UnassignedUnauthorized Use: Unauthorized Use Known on port 796
800mdbs-daemonTCPIANA assigned this well-formed service name as a replacement for "mdbs_daemon".
800mdbs-daemonUDPIANA assigned this well-formed service name as a replacement for "mdbs_daemon".
802mbap-sTCP/UDPModbus Application Protocol SecureRegistered: 2014-06-10
803-809Unassigned
810fcp-udpTCPFCP
810fcp-udpUDPFCP Datagram
811-827Unassigned
828itm-mcell-sTCP/UDPitm-mcell-s
829pkix-3-ca-raTCP/UDPPKIX-3 CA/RA
830netconf-sshTCP/UDPNETCONF over SSHReference: [RFC6242]
831netconf-beepTCP/UDPNETCONF over BEEPReference: [RFC4744]
832netconfsoaphttpTCP/UDPNETCONF for SOAP over HTTPSReference: [RFC4743]
833netconfsoapbeepTCP/UDPNETCONF for SOAP over BEEPReference: [RFC4743]
834-846Unassigned
847dhcp-failover2TCP/UDPdhcp-failover 2
848gdoiTCP/UDPGDOIReference: [RFC3547]
849-852Unassigned
853domain-sTCPDNS query-response protocol run over TLSReference: [RFC7858]
Registered: 2015-10-08
Modified: 2022-04-11
853domain-sUDPDNS query-response protocol run over DTLS or QUICReference: [RFC7858][RFC8094][RFC9250]
Registered: 2015-10-08
Modified: 2022-04-01
854dlepTCP/UDPDynamic Link Exchange Protocol (DLEP)Reference: [RFC8175]
Registered: 2017-04-03
855-859Unassigned
860iscsiTCP/UDPiSCSIReference: [RFC7143]
Modified: 2013-08-27
861owamp-controlTCPOWAMP-ControlReference: [RFC4656]
861owamp-testUDPOWAMP-TestReference: [RFC8545]
Modified: 2018-12-21
862twamp-controlTCPTWAMP-ControlReference: [RFC5357]
862twamp-testUDPTWAMP-Test Receiver PortReference: [RFC8545]
Modified: 2018-12-21
863-872Unassigned
873rsyncTCP/UDPrsync
874-885Unassigned
886iclcnet-locateTCP/UDPICL coNETion locate server
887iclcnet-svinfoTCPICL coNETion server info IANA assigned this well-formed service name as a replacement for "iclcnet_svinfo".
887iclcnet_svinfoTCPICL coNETion server info
887iclcnet-svinfoUDPICL coNETion server info IANA assigned this well-formed service name as a replacement for "iclcnet_svinfo".
887iclcnet_svinfoUDPICL coNETion server info
888accessbuilderTCP/UDPAccessBuilder
888cddbpTCPCD Database Protocol
889-899Unassigned
900omginitialrefsTCP/UDPOMG Initial Refs
901smpnameresTCP/UDPSMPNAMERES
902ideafarm-doorTCPself documenting Telnet Door
902ideafarm-doorUDPself documenting Door: send 0x00 for info
903ideafarm-panicTCPself documenting Telnet Panic Door
903ideafarm-panicUDPself documenting Panic Door: send 0x00 for info
904-909Unassigned
910kinkTCP/UDPKerberized Internet Negotiation of Keys (KINK)Reference: [RFC4430]
911xact-backupTCP/UDPxact-backup
912apex-meshTCP/UDPAPEX relay-relay service
913apex-edgeTCP/UDPAPEX endpoint-relay serviceReference: [RFC3340]
914TCPReserved
914rift-liesUDPRouting in Fat Trees Link Information ElementReference: [RFC-ietf-rift-rift-24]
Registered: 2023-02-17
Modified: 2024-06-07
915TCPReserved
915rift-tiesUDPRouting in Fat Trees Topology Information ElementReference: [RFC-ietf-rift-rift-24]
Registered: 2023-02-17
Modified: 2024-06-07
916-952Unassigned
953rndcTCPBIND9 remote name daemon controllerRegistered: 2017-06-08
953UDPReserved
954-988Unassigned
989ftps-dataTCP/UDPftp protocol, data, over TLS/SSL
990ftpsTCP/UDPftp protocol, control, over TLS/SSL
991nasTCP/UDPNetnews Administration SystemReference: [RFC4707]
Modified: 2017-02-10
992telnetsTCP/UDPtelnet protocol over TLS/SSL
993imapsTCPIMAP over TLS protocolReference: [RFC3501][RFC8314][RFC9051]
Modified: 2021-02-22
993UDPReservedReference: [RFC9051]
Modified: 2021-02-22
994TCPReservedModified: 2011-08-31
994UDPReserved
995pop3sTCPPOP3 over TLS protocolReference: [RFC8314]
Modified: 2017-12-12
995pop3sUDPpop3 protocol over TLS/SSL (was spop3)
996vsinetTCP/UDPvsinet
999applixUDPApplix ac
1001webpushTCPHTTP Web PushReference: [RFC8030]
Registered: 2016-11-01
1001UDPReserved
1002-1007Unassigned
1008UDPPossibly used by Sun Solaris????
1009Unassigned
1010surfTCP/UDPsurf
1011-1020Reserved
1021exp1TCP/UDP/SCTP/DCCPRFC3692-style Experiment 1Reference: [1][RFC4727][RFC6335]
1022exp2TCP/UDP/SCTP/DCCPRFC3692-style Experiment 2Reference: [1][RFC4727][RFC6335]
1023TCP/UDPReservedReference: [RFC6335]
Modified: 2024-12-20

Source: IANA

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