WHATPORT(1) whatport.net what is on port X

port ___What usually runs there, whether it belongs on the internet, and the command to check it yourself.

All ports (1008)

1 tcp TCPMUX
3 tcp Reserved (formerly compressnet)
4 tcp Unassigned
6 tcp+udp Unassigned
7 tcp+udp Echo
9 tcp+udp Discard
13 tcp+udp Daytime
17 tcp+udp QOTD (Quote of the Day)
19 tcp+udp CHARGEN (Character Generator)
20 tcp FTP data
21 tcp FTP
22 tcp SSH
23 tcp Telnet
24 tcp Any private mail system
25 tcp SMTP
26 tcp Unassigned
30 tcp Unassigned
32 tcp Unassigned
33 tcp+udp DSP (Display Support Protocol)
37 tcp+udp Time
42 tcp+udp Host Name Server / WINS replication
43 tcp WHOIS
49 tcp TACACS+
53 tcp+udp DNS
70 tcp Gopher
79 tcp Finger
80 tcp HTTP
81 tcp Unassigned (alternate HTTP in practice)
82 tcp XFER Utility
83 tcp MIT ML Device
84 tcp Common Trace Facility (CTF)
85 tcp MIT ML Device
88 tcp+udp Kerberos
89 tcp SU/MIT Telnet Gateway
90 tcp DNSIX Security Attribute Token Map
99 tcp Metagram Relay
100 tcp Unassigned (historically "newacct")
106 tcp poppassd (registered: 3COM-TSMUX)
109 tcp POP2
110 tcp POP3
111 tcp+udp sunrpc / rpcbind (portmapper)
113 tcp ident / auth
119 tcp NNTP
123 udp NTP
125 tcp Locus PC-Interface Net Map Server
135 tcp+udp MSRPC endpoint mapper (epmap)
139 tcp NetBIOS Session Service
143 tcp IMAP
144 tcp Universal Management Architecture (historically NeWS)
146 tcp ISO-TP0
161 udp SNMP
163 tcp CMIP/TCP Manager
179 tcp BGP
199 tcp SMUX
211 tcp Texas Instruments 914C/G Terminal
212 tcp ATEXSSTR (anet)
222 tcp rsh-spx (in practice: relocated SSH)
254 tcp Unassigned
255 tcp Unassigned
256 tcp Check Point FireWall-1 (IANA: RAP)
259 tcp ESRO (IANA) — in practice Check Point client authentication
264 tcp Check Point FW1 topology (IANA: BGMP)
280 tcp http-mgmt
301 tcp Unassigned
306 tcp Unassigned
311 tcp AppleShare IP WebAdmin
340 tcp Unassigned
366 tcp ODMR (On-Demand Mail Relay)
389 tcp LDAP
406 tcp IMSP (Interactive Mail Support Protocol)
407 tcp Timbuktu
416 tcp SilverPlatter
417 tcp Onmux
425 tcp ICAD (icad-el)
427 tcp+udp SLP (Service Location Protocol)
443 tcp+udp HTTPS
444 tcp SNPP (Simple Network Paging Protocol)
445 tcp SMB
458 tcp Apple QuickTime (appleqtc)
464 tcp+udp Kerberos kpasswd (password change)
465 tcp Submissions (SMTP over implicit TLS)
481 tcp Ph (CCSO nameserver)
497 tcp+udp Retrospect backup
500 tcp+udp ISAKMP / IKE (IPsec key exchange)
512 tcp exec (BSD rexec)
513 tcp rlogin
514 tcp+udp rsh (TCP) / syslog (UDP)
515 tcp LPD (printer spooler)
524 tcp NCP (NetWare Core Protocol)
541 tcp+udp uucp-rlogin
543 tcp klogin (Kerberized rlogin)
544 tcp kshell (Kerberized rsh)
545 tcp appleqtcsrvr
548 tcp AFP over TCP
554 tcp RTSP
555 tcp dsf
563 tcp NNTPS (NNTP over TLS)
587 tcp Submission (SMTP with STARTTLS)
593 tcp HTTP RPC endpoint mapper (RPC over HTTP)
616 tcp+udp sco-sysmgr
617 tcp sco-dtmgr
625 tcp dec-dlm / Apple ODProxy
631 tcp IPP / CUPS
636 tcp LDAPS
646 tcp+udp LDP (MPLS Label Distribution Protocol)
648 tcp RRP (Registry Registrar Protocol)
666 tcp+udp mdqs / doom
667 tcp disclose
668 tcp mecomm
683 tcp CORBA IIOP
687 tcp asipregistry
691 tcp MS Exchange Routing
700 tcp EPP
705 tcp AgentX
711 tcp+udp Cisco TDP
714 tcp IRIS over XPCS
720 tcp Unassigned
722 tcp Unassigned
726 tcp Unassigned
749 tcp kerberos-adm
765 tcp webster
777 tcp multiling-http
783 tcp SpamAssassin spamd
787 tcp Unassigned
800 tcp mdbs-daemon
801 tcp device
808 tcp alternate HTTP / CCProxy / net.tcp
843 tcp Flash socket policy server
873 tcp rsync daemon
880 tcp Unassigned
888 tcp AccessBuilder / CDDB
898 tcp Solaris Management Console
900 tcp OMG Initial References (CORBA)
901 tcp SWAT (Samba Web Administration Tool) — historical
902 tcp VMware host agent / vmware-authd
903 tcp VMware remote console (legacy) — IANA: ideafarm-panic
911 tcp xact-backup
912 tcp VMware Authorization Service (Workstation/Player) — IANA: apex-mesh
981 tcp Unassigned — commonly Check Point embedded HTTPS management
987 tcp Unassigned — commonly Windows SBS "companyweb" over HTTPS
990 tcp FTPS (implicit TLS control channel)
992 tcp Telnets (Telnet over TLS)
993 tcp IMAPS (IMAP over implicit TLS)
995 tcp POP3S (POP3 over implicit TLS)
999 tcp garcon / puprouter (legacy registrations)
1000 tcp cadlock2 (registration) — in practice, a round number
1001 tcp webpush (HTTP Web Push registration)
1002 tcp Unassigned — nmap labels it windows-icfw
1007 tcp Unassigned
1009 tcp Unassigned
1010 tcp surf (legacy registration)
1011 tcp Reserved (IANA)
1021 tcp exp1 — RFC 3692-style experiment
1022 tcp exp2 — RFC 3692-style experiment
1023 tcp Reserved — top of the system port range
1024 tcp Reserved — first port above the privileged range
1025 tcp Windows dynamic RPC endpoint — IANA: blackjack
1026 tcp+udp CAP (Calendar Access Protocol) / Windows dynamic RPC
1027 tcp+udp Reserved (TCP) / 6a44 (UDP)
1028 tcp+udp Deprecated
1029 tcp+udp solid-mux (Solid Mux Server)
1030 tcp+udp Reserved
1031 tcp+udp Reserved
1032 tcp+udp Reserved
1033 tcp+udp netinfo-local
1034 tcp+udp activesync
1035 tcp+udp mxxrlogin (MX-XR RPC)
1036 tcp+udp nsstp (Nebula Secure Segment Transfer Protocol)
1037 tcp+udp ams
1038 tcp+udp MTQP (Message Tracking Query Protocol)
1039 tcp+udp sbl (Streamlined Blackhole)
1040 tcp+udp netarx (Netarx Netcare)
1041 tcp+udp danf-ak2 (AK2 Product)
1042 tcp+udp afrog (Subnet Roaming)
1043 tcp+udp boinc-client (BOINC Client Control)
1044 tcp+udp dcutility (Dev Consortium Utility)
1045 tcp+udp fpitp (Fingerprint Image Transfer Protocol)
1046 tcp+udp wfremotertm (WebFilter Remote Monitor)
1047 tcp+udp neod1 (Sun NEO Object Request Broker)
1048 tcp+udp neod2 (Sun NEO Object Request Broker)
1049 tcp+udp td-postman (Tobit David)
1050 tcp CORBA Management Agent / J2EE naming
1051 tcp+udp Optima VNET
1052 tcp+udp DDT (Dynamic DNS Tools)
1053 tcp+udp Remote Assistant (RA)
1054 tcp+udp BRVREAD
1055 tcp ANSYS License Manager (FlexNet)
1056 tcp+udp VFO
1057 tcp+udp STARTRON
1058 tcp+udp AIX NIM (nim)
1059 tcp+udp AIX NIM registration (nimreg)
1060 tcp+udp POLESTAR
1061 tcp+udp KIOSK
1062 tcp+udp Veracity
1063 tcp+udp KyoceraNetDev
1064 tcp+udp JSTEL
1065 tcp+udp SYSCOMLAN
1066 tcp+udp FPO-FNS
1067 tcp+udp Installation Bootstrap Protocol Server (instl_boots)
1068 tcp+udp Installation Bootstrap Protocol Client (instl_bootc)
1069 tcp Cognex In-Sight
1070 tcp+udp GMRUpdateSERV
1071 tcp+udp BSQUARE-VOIP
1072 tcp CARDAX (Gallagher access control)
1073 tcp Bridge Control
1074 tcp Warmspot Management Protocol
1075 tcp RDRMSHC
1076 tcp DAB STI-C
1077 tcp IMGames
1078 tcp Avocent Proxy Protocol
1079 tcp ASPROVATalk
1080 tcp SOCKS proxy
1081 tcp PVUNIWIEN
1082 tcp AMT-ESD-PROT
1083 tcp Ansoft License Manager
1084 tcp Ansoft License Manager / ANSYS License Management Center
1085 tcp WebObjects (wotaskd)
1086 tcp CPL Scrambler Logging
1087 tcp CPL Scrambler Internal
1088 tcp CPL Scrambler Alarm Log
1089 tcp FOUNDATION Fieldbus HSE — Annunciation
1090 tcp FOUNDATION Fieldbus HSE — FMS
1091 tcp FOUNDATION Fieldbus HSE — System Management
1093 tcp PROOF (proofd / xproofd)
1094 tcp rootd / XRootD
1096 tcp CNRP (Common Name Resolution Protocol)
1097 tcp Sun Cluster Manager
1098 tcp Java RMI activation (rmid)
1099 tcp Java RMI registry
1100 tcp MCTP (IANA) / JBoss HA-JNDI
1104 tcp XRL
1106 tcp ISOIPSIGPORT-1
1107 tcp ISOIPSIGPORT-2
1108 tcp ratio-adp
1110 tcp+udp nfsd-status / webadmstart
1111 tcp+udp LM Social Server
1112 tcp ICP / mSQL (legacy)
1114 tcp Mini SQL (mSQL)
1117 tcp ARDUS Multicast Transfer
1119 tcp+udp Battle.net (bnetgame)
1122 tcp availant-mgr
1124 tcp HP VMM Control
1131 tcp CASP SSL (caspssl)
1138 tcp encrypted-admin
1148 tcp Elfiq Replication Service
1151 tcp Unizensus Login Server
1152 tcp Winpopup LAN Messenger
1169 tcp Tripwire
1175 tcp Dossier Server
1183 tcp llsurfup-http
1186 tcp MySQL NDB Cluster management
1199 tcp DMIDI
1201 tcp+udp Nucleus Sand Database Server
1218 tcp AeroFlight-ADs
1234 tcp+udp QEMU gdbstub / VLC streaming (unofficial); Infoseek search-agent (registered)
1247 tcp VisionPyramid
1248 tcp hermes
1271 tcp+udp eXcW
1272 tcp CSPMLockMgr
1296 tcp+udp dproxy
1310 tcp Husky
1311 tcp Dell OpenManage Server Administrator
1334 tcp AIX writesrv
1352 tcp Lotus Notes / HCL Domino NRPC
1417 tcp Timbuktu Service 1
1433 tcp Microsoft SQL Server
1434 tcp+udp SQL Server Browser (UDP) / Dedicated Admin Connection (TCP)
1443 tcp ies-lm
1455 tcp ESL License Manager
1461 tcp+udp IBM Wireless LAN
1494 tcp Citrix ICA
1500 tcp IBM Storage Protect (Tivoli Storage Manager) server
1501 tcp+udp saiscm (Satellite-data Acquisition System 3)
1503 tcp T.120 data conferencing (imtc-mcs)
1521 tcp Oracle Database listener (TNS)
1524 tcp ingreslock
1533 tcp Sametime Community Server (virtual-places)
1580 tcp tn-tl-r1
1600 tcp issd
1666 tcp Perforce Helix Core (p4d)
1687 tcp nsjtp-ctrl
1700 udp RADIUS Change of Authorization (Cisco default)
1717 tcp fj-hdnet
1718 udp H.323 gatekeeper discovery
1720 tcp H.323 call signalling (Q.931)
1723 tcp PPTP
1755 tcp MMS (Microsoft Media Server)
1761 tcp Novell ZENworks Remote Management agent (cft-0)
1782 tcp hp-hcip
1783 tcp Unassigned (decommissioned)
1801 tcp MSMQ (Microsoft Message Queuing)
1840 tcp netopia-vo2
1862 tcp MySQL Cluster Manager agent (mcmd)
1863 tcp MSNP (MSN Messenger Protocol)
1864 tcp paradym-31port
1883 tcp MQTT
1900 udp SSDP (UPnP discovery)
1935 tcp RTMP
1947 tcp+udp Sentinel LDK / HASP License Manager
1984 tcp Big Brother / Xymon
1998 tcp XOT (X.25 over TCP)
1999 tcp Cisco identification port
2000 tcp Cisco SCCP (Skinny)
2001 tcp dc (IANA) / Cisco reverse-telnet line 1
2002 tcp globe
2003 tcp Graphite carbon (plaintext)
2004 tcp Graphite carbon (pickle)
2005 tcp berknet / deslogin (legacy)
2006 tcp invokator
2007 tcp dectalk
2008 tcp conf
2009 tcp news
2010 tcp search
2013 tcp raid-am
2020 tcp xinupageserver
2021 tcp servexec
2022 tcp down (IANA) / alternate SSH in practice
2030 tcp device2
2033 tcp glogger
2034 tcp scoremgr
2035 tcp+udp imsldoc (registration only)
2038 tcp+udp objectmanager (registration only)
2040 tcp+udp lam (registration only)
2041 tcp+udp interbase (registration name only)
2042 tcp+udp isis (registration only)
2043 tcp+udp isis-bcast (registration only)
2045 tcp+udp cdfunc (registration only)
2046 tcp+udp sdfunc (registration only)
2047 tcp+udp dls (registration only)
2048 tcp+udp dls-monitor (registration only)
2049 tcp+udp NFS
2065 tcp DLSw read port
2068 tcp Avocent KVM-over-IP
2100 tcp Amiga Network Filesystem / Oracle XML DB FTP
2103 tcp Zephyr serv-hm / MSMQ RPC
2105 tcp eklogin / MSMQ RPC (IANA: MiniPay)
2106 tcp+udp MZAP / ekshell
2107 tcp MSMQ management RPC (IANA: BinTec Admin)
2111 tcp kx (X over Kerberos) / OPNET DSATP
2119 tcp Globus GRAM gatekeeper
2121 tcp Alternate FTP / FTP proxy
2126 tcp PacketCable COPS
2135 tcp GRIS (Grid Resource Information Server)
2144 tcp LiveVault Fast Object Transfer
2160 tcp APC PowerChute (legacy)
2161 tcp APC PowerChute agent (legacy)
2179 tcp Hyper-V VMConnect (vmrdp)
2190 tcp+udp TiVoConnect Beacon
2191 tcp TvBus Messaging
2222 tcp+udp EtherNet/IP I/O, SSH alternate, DirectAdmin
2251 tcp Distributed Framework Port
2260 tcp APC PowerChute console (legacy)
2301 tcp HP/HPE System Management Homepage (HTTP)
2323 tcp Telnet alternate (IoT)
2381 tcp HP/HPE System Management Homepage (HTTPS)
2383 tcp SQL Server Analysis Services
2393 tcp Microsoft OLAP (legacy)
2394 tcp Microsoft OLAP (legacy)
2399 tcp FileMaker Server ODBC/JDBC
2401 tcp CVS pserver
2492 tcp Groove
2500 tcp Resource Tracking system server
2522 tcp WinDb
2525 tcp SMTP submission (unofficial alternate)
2601 tcp zebra VTY (FRR / Quagga)
2602 tcp ripd VTY (FRR / Quagga)
2604 tcp FRRouting/Quagga ospfd vty
2605 tcp FRRouting/Quagga bgpd vty
2607 tcp FRRouting ospfd OSPF API
2608 tcp FRRouting isisd vty
2638 tcp+udp SAP SQL Anywhere (Sybase) database server
2701 tcp SCCM/SMS Remote Control
2702 tcp SMS/SCCM Remote Control transfer
2717 tcp+udp pn-requester (registered)
2718 tcp+udp pn-requester2 (registered)
2725 tcp Microsoft OLAP (msolap-ptp2)
2809 tcp CORBA corbaloc / IIOP bootstrap
2811 tcp GridFTP (GSI FTP)
2869 tcp Windows UPnP / SSDP event notification (ICSLAP)
2875 tcp+udp dxmessagebase2 (registered)
2909 tcp+udp funk-dialout (registered)
2967 tcp Symantec AntiVirus / SSC agent
2998 tcp+udp ISS RealSecure
3000 tcp Node/Express dev server, Grafana
3001 tcp Second dev server / OrigoDB (registered)
3003 tcp+udp cgms (registered)
3005 tcp+udp Genius License Manager (registered) / deslogin
3006 tcp+udp Instant Internet Admin (registered) / deslogind
3011 tcp+udp trusted-web (registered)
3017 tcp+udp event-listener (registered)
3030 tcp arepa-cas (in practice: ad-hoc dev server)
3031 tcp+udp Remote AppleEvents (eppc)
3052 tcp+udp APC PowerChute (apc-3052)
3071 tcp xplat-replicate (NetApp)
3077 tcp Orbix 2000 Locator SSL
3128 tcp Squid / HTTP proxy
3168 tcp poweronnud (Now Up-to-Date Public Server)
3211 tcp Avocent Secure Management
3221 tcp Junos XML protocol, cleartext (xnm-clear-text)
3260 tcp iSCSI target
3261 tcp winShadow
3268 tcp Microsoft Global Catalog (LDAP)
3269 tcp Microsoft Global Catalog over TLS
3283 tcp+udp Apple Remote Desktop (net-assistant)
3300 tcp Ceph monitor (msgr2)
3301 tcp Tarantool
3306 tcp MySQL / MariaDB
3322 tcp active-net (Active Networks)
3323 tcp active-net (Active Networks)
3324 tcp active-net (Active Networks)
3325 tcp active-net (Active Networks)
3333 tcp dec-notes (in practice: OpenOCD GDB, mining stratum, alt HTTP)
3351 tcp Btrieve / Actian Zen
3367 tcp satvid-datalnk (Satellite Video Data Link)
3369 tcp+udp satvid-datalnk (Satellite Video Data Link)
3370 tcp+udp satvid-datalnk (Satellite Video Data Link)
3371 tcp+udp satvid-datalnk (Satellite Video Data Link)
3372 tcp+udp MSDTC / TIP 2
3389 tcp+udp RDP (MS WBT Server)
3390 tcp+udp dsc (Distributed Service Coordinator)
3404 tcp Unassigned (registration removed)
3476 tcp+udp nppmp (NVIDIA Mgmt Protocol)
3493 tcp NUT (Network UPS Tools)
3517 tcp+udp 802-11-iapp (IEEE 802.11 IAPP)
3527 tcp+udp beserver-msg-q (Backup Exec Server)
3546 tcp+udp Unassigned
3551 tcp apcupsd NIS
3580 tcp NI Service Locator
3659 tcp+udp apple-sasl
3689 tcp DAAP
3690 tcp Subversion (svnserve)
3703 tcp+udp adobeserver-3 (Adobe Version Cue)
3737 tcp xpanel (XPanel Daemon)
3766 tcp sitewatch-s (SSL e-watch sitewatch server)
3784 tcp+udp BFD Control
3800 tcp+udp pwgpsi (Print Service Interface)
3801 tcp+udp ibm-mgr (IBM manager service)
3809 tcp APOC configuration agent (registered)
3814 tcp netO DCS (registered)
3826 tcp WarMUX game server
3827 tcp Netadmin Systems MPI service
3828 tcp Netadmin Systems Event Handler
3851 tcp SpectraTalk (registered)
3869 tcp HP OpenView Storage Area Manager discovery
3871 tcp Avocent DS Authorization (ADSAP2)
3878 tcp FotoG CAD interface (registered)
3880 tcp IGRS
3889 tcp D and V Tester control port (registered)
3905 tcp MUPDATE (Cyrus Murder)
3914 tcp ListCREATOR port 2 (registered)
3918 tcp PacketCable Multimedia COPS
3920 tcp Exasoft IP port (registered)
3945 tcp EMCADS server (registered)
3971 tcp LANrev server
3986 tcp Unisys MAPPER/BIS workstation server
3995 tcp ISS management services SSL
3998 tcp DNX (Distributed Nagios eXecutor)
4000 tcp Phoenix / Jekyll dev servers (IANA: Terabase)
4001 tcp IPFS swarm; legacy etcd client API (IANA: NewOak)
4002 tcp pxc-spvr-ft (registered)
4003 tcp pxc-splr-ft (IANA registration)
4004 tcp pxc-roid (IANA registration)
4005 tcp SWANK (SLIME Lisp backend)
4006 tcp pxc-spvr (IANA registration)
4045 tcp+udp NFS lock manager (lockd / NLM)
4111 tcp Xgrid
4125 tcp Microsoft Remote Web Workplace (TS Proxy) / Opsview Envoy
4126 tcp Data Domain Replication Service (ddrepl)
4129 tcp NuFW authentication server (nuauth)
4200 tcp Angular CLI dev server
4224 tcp xtell
4242 tcp OpenTSDB / Quassel core (unregistered convention)
4279 tcp vrml-multi-use (IANA range assignment)
4321 tcp RWhois (Referral Whois)
4343 tcp UNICALL (IANA) / Aruba controller WebUI
4443 tcp Alternate HTTPS (IANA: pharos)
4444 tcp krb524 (IANA) / Metasploit handler / I2P HTTP proxy / Galera SST
4445 tcp I2P HTTPS proxy (IANA: upnotifyp)
4446 tcp N1-FWP (IANA registration)
4449 tcp PrivateWire (IANA registration)
4550 tcp gds-adppiw-db (IANA registration)
4567 tcp Sinatra dev server / Galera replication (IANA: tram)
4662 tcp eDonkey2000 / eMule
4848 tcp GlassFish / Payara admin console
4899 tcp+udp Radmin
4900 tcp+udp HFSQL Client/Server
4998 tcp Unassigned
5000 tcp Flask dev server, Docker registry, macOS AirPlay Receiver
5001 tcp commplex-link / Synology DSM HTTPS / iperf 2
5002 tcp rfe
5003 tcp FileMaker Server
5004 tcp+udp RTP (AVP profile)
5009 tcp AirPort admin (registered as winfs)
5030 tcp reserved
5033 tcp jtnetd-server
5050 tcp+udp Apache Mesos master (registered as mmcc)
5051 tcp+udp Apache Mesos agent (registered as ita-agent)
5054 tcp RLM web administration
5060 tcp+udp SIP
5061 tcp+udp SIP over TLS
5080 tcp FreeSWITCH external SIP profile (registered as onscreen)
5087 tcp BIOTIC
5100 tcp socalia
5101 tcp talarian-tcp
5102 tcp Oracle OMS non-secure
5120 tcp+udp Barracuda Backup replication
5173 tcp Vite dev server
5190 tcp+udp AOL / OSCAR (AIM, ICQ)
5200 tcp+udp targus-getdata
5214 tcp Unassigned
5221 tcp 3eTI Extensible Management Protocol (3exmp)
5222 tcp XMPP client connection
5225 tcp+udp HP Server (hp-server)
5226 tcp+udp HP Status (hp-status)
5269 tcp XMPP server-to-server
5280 tcp XMPP over BOSH / HTTP
5298 tcp+udp XMPP link-local messaging (presence)
5353 udp mDNS (Bonjour / Avahi)
5357 tcp WSDAPI (Web Services on Devices)
5405 tcp+udp Corosync cluster messaging (IANA: netsupport)
5414 tcp+udp StatusD (statusd)
5431 tcp+udp PARK AGENT (park-agent)
5432 tcp PostgreSQL
5440 tcp Unassigned
5500 tcp VNC listening viewer (IANA: fcp-addr-srvr1)
5510 tcp Legacy RSA ACE/Server replica sync (unassigned at IANA)
5544 tcp Unassigned
5550 tcp CBUS model railway control (formerly RSA sdadmind)
5555 tcp Android Debug Bridge over TCP/IP
5560 tcp Oracle iSQL*Plus (unassigned at IANA)
5566 tcp Westec Connect (westec-connect)
5631 tcp pcAnywhere data (pcanywheredata)
5633 tcp+udp Backup Exec Operations Request Listener (beorl)
5666 tcp NRPE (Nagios Remote Plugin Executor)
5678 tcp n8n (IANA: rrac)
5679 tcp dccm (Direct Cable Connect Manager)
5718 tcp Microsoft DPM (backup agent channel)
5730 tcp unieng (Steltor calendar access)
5800 tcp VNC over HTTP (display :0)
5801 tcp VNC over HTTP (display :1)
5802 tcp VNC over HTTP (display :2)
5810 tcp Unassigned (VNC HTTP display :10 by convention)
5811 tcp Unassigned
5815 tcp Unassigned
5822 tcp Unassigned
5825 tcp Unassigned
5850 tcp Unassigned
5859 tcp wherehoo (WHEREHOO)
5862 tcp Unassigned
5877 tcp Unassigned
5900 tcp VNC (RFB)
5901 tcp VNC (RFB) display :1
5902 tcp VNC (RFB) display :2
5903 tcp ff-ice (ICAO) / VNC display :3 in practice
5904 tcp ag-swim (ICAO) / VNC display :4 in practice
5906 tcp rpas-c2 (ICAO) / VNC display :6 in practice
5907 tcp dsd (ICAO) / VNC display :7 in practice
5910 tcp ats-atn (ICAO) / VNC display :10 in practice
5911 tcp ats-acars (IANA) / VNC display :11
5915 tcp Unassigned / VNC display :15
5922 tcp Unassigned / VNC display :22
5925 tcp Unassigned / VNC display :25
5950 tcp Unassigned / VNC display :50
5952 tcp Unassigned / VNC display :52
5959 tcp Unassigned / VNC display :59
5960 tcp Unassigned / VNC display :60
5961 tcp Unassigned / VNC display :61
5962 tcp Unassigned / VNC display :62
5963 tcp indy (Indy Application Server)
5985 tcp WinRM / WS-Management over HTTP
5986 tcp WinRM / WS-Management over HTTPS
5987 tcp wbem-rmi (WBEM over Java RMI)
5988 tcp WBEM CIM-XML over HTTP
5989 tcp WBEM CIM-XML over HTTPS
5998 tcp Unassigned (historically NCD X terminal diagnostics)
5999 tcp CVSup (also listed as ncd-conf)
6000 tcp X11 (display :0)
6001 tcp X11 (display :1)
6002 tcp X11 (display :2)
6003 tcp X11 (display :3)
6004 tcp X11 display :4
6005 tcp X11 display :5
6006 tcp TensorBoard (IANA: X11 display :6)
6007 tcp X11 display :7 / second TensorBoard
6009 tcp X11 display :9
6025 tcp X11 display :25
6059 tcp X11 display :59
6100 tcp+udp SynchroNet-db
6101 tcp Backup Exec Agent Browser (IANA: SynchroNet-rtc)
6106 tcp+udp MPS Server
6112 tcp+udp CDE dtspcd / Blizzard games
6123 tcp Apache Flink JobManager RPC (IANA: Backup Express)
6129 tcp DameWare Mini Remote Control
6156 tcp Unassigned
6247 tcp Unassigned
6346 tcp+udp Gnutella
6379 tcp Redis
6389 tcp+udp clariion-evr01
6481 tcp+udp Sun Service Tags
6500 tcp BoKS Master
6502 tcp BoKS Servm
6504 tcp Unassigned
6510 tcp+udp MCER Port
6520 tcp Cuttlefish ADB (unassigned at IANA)
6543 tcp Pyramid development server (IANA: lds-distrib)
6547 tcp APC PowerChute agent UI
6550 tcp fg-sysupdate (registered)
6565 tcp Unassigned
6566 tcp SANE (saned)
6567 tcp reserved (formerly esp)
6580 tcp Parsec master server
6600 tcp MPD / Hyper-V Live Migration
6646 tcp Unassigned
6666 tcp IRC (alternate)
6667 tcp IRC
6668 tcp IRC (alternate)
6669 tcp IRC (alternate)
6689 tcp Tofino Security Appliance
6692 tcp Unassigned
6699 tcp reserved (peer-to-peer file sharing, historically)
6711 tcp Unassigned
6732 tcp Unassigned
6779 tcp Unassigned
6788 tcp SMC-HTTP
6789 tcp Oracle Solaris admin console (radg / smc-https)
6792 tcp Unassigned
6839 tcp Unassigned
6881 tcp BitTorrent peer
6896 tcp Unassigned
6901 tcp KasmVNC (IANA: jetstream)
6969 tcp+udp BitTorrent tracker (IANA: acmsoda)
7000 tcp AirPlay receiver
7001 tcp+udp Oracle WebLogic admin listen / AFS callback
7002 tcp+udp Oracle WebLogic SSL listen / AFS Protection Server
7004 tcp+udp AFS Authentication Server (kaserver)
7007 tcp+udp AFS Basic OverSeer Server (bosserver)
7019 tcp Doceri drawing service control
7024 tcp+udp Vormetric service (vmsvc)
7025 tcp+udp Vormetric Service II (vmsvc-2)
7050 tcp Hyperledger Fabric orderer
7051 tcp Hyperledger Fabric peer
7070 tcp ARCP / RealServer RTSP / Openfire HTTP-bind
7080 tcp LiteSpeed WebAdmin (IANA: empowerid)
7100 tcp+udp X Font Service (xfs)
7103 tcp Unassigned
7106 tcp Unassigned
7123 tcp SNIF relay control
7200 tcp+udp FODMS FLIP
7201 tcp+udp DLIP
7241 tcp Unassigned
7272 tcp+udp WatchMe Monitoring
7278 tcp+udp OMA Dynamic Content Delivery over CBS
7281 tcp itactionserver2
7402 tcp+udp RTPS data-distribution meta-traffic
7435 tcp Unassigned
7438 tcp Unassigned
7443 tcp HTTPS alternate (oracleas-https)
7496 tcp Unassigned
7512 tcp Unassigned
7625 tcp Unassigned
7627 tcp soap-http
7676 tcp imqbrokerd (OpenMQ Port Mapper)
7725 tcp nitrogen
7741 tcp scriptview
7744 tcp RAQMON PDU
7749 tcp Unassigned
7770 tcp Unassigned
7777 tcp+udp game server / cbt
7778 tcp interwise
7800 tcp Apple Software Restore / JGroups cluster transport
7878 tcp Radarr
7900 tcp noVNC (Selenium containers)
7911 tcp Unassigned
7913 tcp qo-secure
7920 tcp Unassigned
7921 tcp Unassigned
7929 tcp Unassigned
7937 tcp NetWorker nsrexecd
7938 tcp NetWorker portmapper (lgtomapper)
7999 tcp Bitbucket SSH (IANA: irdmi2)
8000 tcp Python http.server, Django runserver
8001 tcp kubectl proxy, HTTP alternate
8002 tcp Teradata ORDBMS (IANA), HTTP alternate
8007 tcp AJP 1.2 (legacy), IANA: warppipe
8008 tcp HTTP alternate; Google Cast device HTTP
8009 tcp Google Cast (Chromecast) control — or Tomcat AJP
8010 tcp Buildbot web UI (IANA: Reserved)
8011 tcp Unassigned
8015 tcp cfg-cloud (Configuration Cloud Service)
8016 tcp Beckhoff Secure ADS (ads-s)
8019 tcp QuickBooks Database (qbdb)
8021 tcp FreeSWITCH event socket; FTP proxy
8022 tcp SSH alternate; Termux sshd
8031 tcp Unassigned
8042 tcp Hadoop YARN NodeManager UI; Orthanc DICOM HTTP
8045 tcp Unassigned
8050 tcp Unassigned
8080 tcp HTTP alternate
8081 tcp HTTP alternate; Sonatype Nexus Repository
8082 tcp HTTP alternate (IANA: us-cli)
8083 tcp HTTP alternate (IANA: us-srv)
8084 tcp websnp (Snarl over HTTP) / HTTP alternate
8085 tcp Unregistered HTTP alternate
8086 tcp InfluxDB HTTP API
8087 tcp Riak KV Protocol Buffers API
8088 tcp Hadoop YARN ResourceManager UI, Asterisk HTTP
8089 tcp Splunk management port (splunkd)
8090 tcp Atlassian Confluence
8093 tcp Unassigned
8095 tcp Unassigned
8097 tcp sac (SAC Port Id)
8098 tcp Riak KV HTTP API
8099 tcp Unregistered HTTP alternate
8100 tcp Xprint Server
8123 tcp Home Assistant (or ClickHouse HTTP)
8180 tcp Tomcat / HTTP alternate
8181 tcp GlassFish HTTPS listener, Intermapper
8189 tcp Unassigned
8192 tcp spytechphone (SpyTech Phone Service)
8193 tcp Unassigned
8194 tcp Bloomberg data API (blp1)
8200 tcp HashiCorp Vault API
8222 tcp NATS HTTP monitoring
8254 tcp Unassigned
8290 tcp Unassigned
8291 tcp MikroTik WinBox
8292 tcp+udp blp3 — Bloomberg professional
8293 tcp hiperscan-id
8294 tcp+udp blp4 — Bloomberg intelligent client
8300 tcp HashiCorp Consul server RPC (IANA: tmi)
8333 tcp Bitcoin P2P (mainnet)
8383 tcp+udp m2mservices
8385 tcp Unassigned
8400 tcp Commvault CVD
8402 tcp abarsd (Commvault services)
8443 tcp HTTPS alternate
8481 tcp Unassigned
8500 tcp HashiCorp Consul HTTP API (IANA: fmtp)
8540 tcp Unassigned
8600 tcp+udp Consul DNS (IANA: asterix)
8648 tcp Unassigned
8649 tcp+udp Ganglia gmond
8651 tcp Ganglia gmetad XML port
8652 tcp Ganglia gmetad interactive port
8654 tcp Unassigned
8675 tcp+udp msi-cps-rm
8676 tcp Unassigned
8686 tcp GlassFish JMX/RMI (sun-as-jmxrmi)
8701 tcp+udp Unassigned
8765 tcp Ultraseek HTTP (registered)
8766 tcp+udp Agilent Connectivity Service (registered)
8800 tcp Sun Web Server admin (registered)
8873 tcp DXSpider linking protocol
8877 tcp Unassigned
8888 tcp Jupyter Notebook, HTTP alternate
8889 tcp Jupyter (second instance), HTTP alternate
8899 tcp+udp ospf-lite (registered)
8987 tcp Unassigned
8994 tcp Unassigned
8996 tcp Unassigned
9000 tcp PHP-FPM, ClickHouse native protocol
9002 tcp DynamID authentication (registered)
9003 tcp Xdebug (DBGp)
9009 tcp ClickHouse interserver replication
9010 tcp Secure Data Replicator Protocol (registered)
9011 tcp Reserved (TCP); D-Star routing (UDP)
9040 tcp Tor TransPort (convention)
9050 tcp Tor SOCKS proxy
9071 tcp Unassigned
9080 tcp Open Liberty / WebSphere Liberty HTTP
9081 tcp Reserved (TCP)
9090 tcp Prometheus, Cockpit
9091 tcp Transmission RPC / Prometheus Pushgateway
9098 tcp Unassigned
9099 tcp Unassigned
9100 tcp Raw printing (AppSocket / JetDirect, PDL data stream)
9101 tcp Bacula Director / JetDirect port 2
9102 tcp Bacula File Daemon / JetDirect port 3
9103 tcp Bacula Storage Daemon
9110 tcp Unassigned
9111 tcp hexxorecore (historically Dragon IDS console)
9191 tcp PaperCut admin UI (registered as Sun AppSvr JPDA)
9197 tcp Unassigned
9198 tcp Unassigned
9200 tcp Elasticsearch / OpenSearch REST API
9207 tcp WAP vCal Secure
9220 tcp Unassigned
9290 tcp Unassigned
9409 tcp Unassigned
9415 tcp Unassigned
9418 tcp Git protocol (git daemon)
9443 tcp HTTPS alternate (Portainer, WSO2, appliance consoles)
9444 tcp WSO2 ESB administration console (HTTPS)
9485 tcp Unassigned
9500 tcp ismserver
9501 tcp Swoole application server (unregistered)
9502 tcp Swoole secondary listener (unregistered)
9503 tcp Unassigned
9535 tcp+udp mngsuite — Management Suite Remote Control
9575 tcp Unassigned
9593 tcp+udp cba8 — LANDesk/Ivanti Management Agent
9594 tcp+udp msgsys — Message System
9595 tcp+udp pds — Ping Discovery Service
9600 tcp+udp Logstash monitoring API, OMRON FINS
9618 tcp+udp HTCondor collector
9621 tcp Unassigned
9643 tcp Unassigned
9666 tcp zoomcp — Zoom Control Panel game server management
9673 tcp Unassigned
9815 tcp+udp Unassigned
9876 tcp Karma test runner; sd (Session Director)
9877 tcp x510 — X.510 wrapper protocol
9878 udp kca-service — KX509 certificate issuance
9898 tcp+udp monkeycom
9900 tcp+udp IUA — ISDN Q.921 User Adaptation
9914 tcp Unassigned
9917 tcp Unassigned
9929 tcp Nping echo server
9941 tcp Unassigned
9943 tcp Unassigned
9944 tcp Substrate / Polkadot JSON-RPC
9968 tcp Unassigned
9988 tcp nsesrvr
9998 tcp+udp distinct32
9999 tcp+udp distinct / alternate HTTP
10000 tcp+udp NDMP / Webmin
10001 tcp+udp scp-config / Ubiquiti discovery
10002 tcp+udp documentum
10003 tcp+udp documentum_s
10004 tcp emcrmirccd
10009 tcp+udp swdtp-sv / lnd gRPC
10010 tcp rxapi
10012 tcp Unassigned
10024 tcp amavisd-new content filter
10025 tcp MTA reinjection (post-filter SMTP)
10082 tcp amandaidx (Amanda index server)
10180 tcp Unassigned
10215 tcp Unassigned
10243 tcp Windows Media Player Network Sharing (HTTP)
10566 tcp Unassigned
10616 tcp Unassigned
10617 tcp Unassigned
10621 tcp+udp Unassigned
10626 tcp Unassigned
10628 tcp Unassigned
10629 tcp Unassigned
10778 tcp Unassigned
11110 tcp sgi-soap (DMF SOAP)
11111 tcp+udp vce (IANA) / ricci in practice
11967 tcp+udp sysinfo-sp
12000 tcp+udp entextxid (IBM Enterprise Extender)
12174 tcp Unassigned
12265 tcp Unassigned
12345 tcp NetBus (in practice) / italk (IANA)
13456 tcp Unassigned
13722 tcp+udp bpjava-msvc (NetBackup)
13782 tcp+udp bpcd (NetBackup client daemon)
13783 tcp+udp vopied (NetBackup)
14000 tcp Hadoop HttpFS (in practice) / scotty-ft (IANA)
14238 tcp Unassigned
14441 tcp Unassigned
14442 tcp Unassigned
15000 tcp Envoy admin (in practice) / hydap (IANA)
15002 tcp onep-tls (Cisco) / Istio failure detection
15003 tcp+udp PBS/TORQUE pbs_resmom
15004 tcp+udp PBS/TORQUE pbs_sched
15660 tcp Backup Express restore server
15742 tcp Unassigned
16000 tcp FileMaker Server admin (fmsas)
16001 tcp FileMaker Server admin connector (fmsascon)
16012 tcp Unassigned
16016 tcp Unassigned
16018 tcp Unassigned
16080 tcp macOS Server web performance cache
16113 tcp Unassigned
16992 tcp Intel AMT SOAP/HTTP
16993 tcp Intel AMT SOAP/HTTPS
17877 tcp Unassigned
17988 tcp HPE iLO Virtual Media
18040 tcp Unassigned
18101 tcp Unassigned
18988 tcp Unassigned
19101 tcp Unassigned
19283 tcp+udp Sassafras KeyServer (keysrvr)
19315 tcp+udp Sassafras KeyServer shadow (keyshadow)
19350 tcp Adobe Flash/Adobe Media Server core
19780 tcp Unassigned
19801 tcp Unassigned
19842 tcp Unassigned
20000 tcp+udp DNP3 / Usermin
20005 tcp+udp OpenWebNet
20031 tcp Unassigned (NetVault on UDP)
20221 tcp+udp Unassigned
20222 tcp+udp iPulse-ICS
20828 tcp Unassigned
21571 tcp Unassigned
22939 tcp Unassigned
23502 tcp Unassigned
24444 tcp Unassigned
24800 tcp Deskflow / Synergy / Barrier
25734 tcp Unassigned
25735 tcp Unassigned
26214 tcp Unassigned
27000 tcp+udp FlexNet Publisher (FlexLM)
27017 tcp MongoDB
27352 tcp Unassigned
27353 tcp Unassigned
27355 tcp Unassigned
27356 tcp Unassigned
27715 tcp Unassigned
28201 tcp Unassigned
30000 tcp ndmps (IANA) / Kubernetes NodePort
30718 tcp+udp Lantronix 77FEh configuration port
30951 tcp Unassigned
31038 tcp Unassigned
31337 tcp+udp eldim (IANA) / "elite" backdoor port
32400 tcp Plex Media Server
32768 tcp+udp filenet-tms (IANA) / first ephemeral port on Linux
32769 tcp+udp filenet-rpc (IANA) / ephemeral or RPC service
32770 tcp+udp filenet-nch (IANA) / dynamic ONC RPC
32771 tcp+udp filenet-rmi (IANA) / dynamic ONC RPC
32772 tcp+udp filenet-pa (IANA) / dynamic ONC RPC
32773 tcp+udp filenet-cm (IANA) / dynamic ONC RPC
32774 tcp+udp filenet-re (IANA) / dynamic ONC RPC
32775 tcp+udp filenet-pch (IANA) / dynamic ONC RPC
32776 tcp+udp filenet-peior (IANA) / dynamic ONC RPC
32777 tcp+udp filenet-obrok (IANA) / dynamic ONC RPC
32778 tcp+udp Unassigned / dynamic ONC RPC
32779 tcp+udp Unassigned / dynamic ONC RPC
32780 tcp+udp Unassigned / dynamic ONC RPC
32781 tcp Unassigned
32782 tcp Unassigned
32783 tcp Unassigned
32784 tcp Unassigned
32785 tcp Unassigned
33354 tcp Unassigned
33899 tcp Unassigned
34571 tcp Unassigned
34572 tcp Unassigned
34573 tcp Unassigned
35500 tcp Unassigned
38292 tcp LANDesk Common Base Agent (landesk-cba)
40193 tcp Unassigned
40911 tcp Unassigned
41511 tcp Unassigned
42510 tcp+udp CA eTrust RPC (caerpc)
44176 tcp Unassigned
44442 tcp ColdFusion Advanced Security (coldfusion-auth)
44443 tcp ColdFusion Advanced Security (coldfusion-auth)
44501 tcp Unassigned
45100 tcp Unassigned
48080 tcp Unassigned (commonly an alternate HTTP listener)
49152 tcp+udp Dynamic/ephemeral range start (Windows RPC, UPnP)
49153 tcp Dynamic/ephemeral port (Windows RPC)
49154 tcp Dynamic/ephemeral port (Windows RPC)
49155 tcp Dynamic/ephemeral port (Windows RPC)
49156 tcp Dynamic/ephemeral port (Windows RPC)
49157 tcp Dynamic/ephemeral port (Windows RPC)
49158 tcp Dynamic / ephemeral (commonly Windows RPC)
49159 tcp Dynamic / ephemeral (commonly Windows RPC)
49160 tcp Dynamic / ephemeral (commonly Windows RPC)
49161 tcp Dynamic / ephemeral (commonly Windows RPC)
49163 tcp Dynamic / ephemeral (commonly Windows RPC)
49165 tcp Dynamic / ephemeral (commonly Windows RPC)
49167 tcp Dynamic / ephemeral (commonly Windows RPC)
49175 tcp Dynamic / ephemeral (commonly Windows RPC)
49176 tcp Dynamic / ephemeral (commonly Windows RPC)
49400 tcp compaqdiag (Compaq/HP web-based management)
49999 tcp Unassigned (dynamic range)
50000 tcp IBM Db2 (by convention)
50001 tcp Unassigned (dynamic range)
50002 tcp iiimsf (by convention)
50003 tcp Unassigned (dynamic range)
50006 tcp Unassigned (dynamic range)
50300 tcp Unassigned (dynamic range)
50389 tcp Unassigned (dynamic range) — offset LDAP in practice
50500 tcp Unassigned (dynamic range)
50636 tcp Unassigned (dynamic range) — offset LDAPS in practice
50800 tcp Unassigned (dynamic range)
51103 tcp Unassigned (dynamic range)
51493 tcp Unassigned (dynamic range)
52673 tcp Unassigned (dynamic range)
52822 tcp Unassigned (dynamic range)
52848 tcp Unassigned (dynamic range)
52869 tcp Realtek SDK miniigd UPnP SOAP (consumer routers)
54045 tcp Unassigned (dynamic range)
54328 tcp Unassigned (dynamic range)
55055 tcp Unassigned (dynamic range)
55056 tcp Unassigned (dynamic range)
55555 tcp Unassigned — memorable repdigit, commonly hand-picked
55600 tcp Unassigned (dynamic range)
56737 tcp Unassigned (dynamic range)
56738 tcp Unassigned (dynamic range)
57294 tcp Unassigned (dynamic range)
57797 tcp Unassigned (dynamic range)
58080 tcp Unassigned — commonly an alternate HTTP port
60020 tcp Apache HBase RegionServer RPC (pre-0.99 default)
60443 tcp Unassigned — commonly an alternate HTTPS port
61532 tcp Unassigned (dynamic range)
61900 tcp Unassigned (dynamic range)
62078 tcp iOS lockdownd (device pairing/sync)
63331 tcp Unassigned (dynamic range)
64623 tcp Unassigned (dynamic range)
64680 tcp Unassigned (dynamic range)
65000 tcp Unassigned — round number with a DDoS-tool history
65129 tcp Ivanti Device and Application Control Application Server (non-TLS)
65310 tcp Unassigned (dynamic/private range)
65389 tcp Unassigned (dynamic/private range)

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the whole dataset as JSON; every port page also answers at /<port>.json and /<port>.md

Corrections or a missing port? Reply @rimrocksystems.