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Common Ports And Protocols List

This table only lists the commonly used ports and protocols. For a complete list, refer to the IANA Documentation.
Port Protocol Name Description
1 TCP UDP tcpmux TCP port service multiplexer
5 TCP UDP rje Remote Job Entry
7 TCP UDP echo Echo service
9 TCP UDP discard Null service for connection testing
11 TCP UDP systat System Status service for listing connected ports
13 TCP UDP daytime Sends date and time to requesting host
17 TCP UDP qotd Sends quote of the day to connected host
18 TCP UDP msp Message Send Protocol
19 TCP UDP chargen Character Generation service; sends endless stream of characters
20 TCP UDP ftp-data FTP data port
21 TCP UDP ftp File Transfer Protocol (FTP) port; sometimes used by File Service Protocol (FSP)
22 TCP UDP ssh Secure Shell (SSH) service
23 TCP UDP telnet The Telnet service
25 TCP UDP smtp Simple Mail Transfer Protocol (SMTP)
37 TCP UDP time Time Protocol
39 TCP UDP rlp Resource Location Protocol
42 TCP UDP nameserver Internet Name Service
43 TCP UDP nicname WHOIS directory service
49 TCP UDP tacacs Terminal Access Controller Access Control System for TCP/IP based authentication and access
50 TCP UDP re-mail-ck Remote Mail Checking Protocol
53 TCP UDP domain Domain name services (DNS,such as BIND)
63 TCP UDP whois++ WHOIS++, extended WHOIS services
67 TCP UDP bootps Bootstrap Protocol (BOOTP) services; also used by Dynamic Host Configuration Protocol (DHCP) services
68 TCP UDP bootpc Bootstrap (BOOTP) client; also used by Dynamic Host Control Protocol (DHCP) clients
69 TCP UDP tftp Trivial File Transfer Protocol (TFTP)
70 TCP UDP gopher Gopher Internet document search and retrieval
71 TCP UDP netrjs-1 Remote Job Service
72 TCP UDP netrjs-2 Remote Job Service
73 TCP UDP netrjs-3 Remote Job Service
74 TCP UDP netrjs-4 Remote Job Service
79 TCP UDP finger Finger service for user contact information
80 TCP UDP http HyperText Transfer Protocol (HTTP) for World Wide Web (WWW) services
88 TCP UDP kerberos Kerberos network authentication system
95 TCP UDP supdup Telnet protocol extension
101 TCP UDP hostname Hostname services on SRI-NIC machines
102 TCP iso-tsap ISO Development Environment (ISODE) network applications
105 TCP UDP csnet-ns Mailbox nameserver; also used by CSO nameserver
107 TCP UDP rtelnet Remote Telnet
109 TCP UDP pop2 Post Office Protocol version 2
110 TCP UDP pop3 Post Office Protocol version 3
111 TCP UDP sunrpc Remote Procedure Call (RPC) Protocol for remote command execution, used by Network Filesystem (NFS)
113 TCP UDP auth Authentication and Ident protocols
115 TCP UDP sftp Secure File Transfer Protocol (SFTP) services
117 TCP UDP uucp-path Unix-to-Unix Copy Protocol (UUCP) Path services
119 TCP UDP nntp Network News Transfer Protocol (NNTP) for the USENET discussion system
123 TCP UDP ntp Network Time Protocol (NTP)
137 TCP UDP netbios-ns NETBIOS Name Service used in Red Hat Enterprise Linux by Samba
138 TCP UDP netbios-dgm NNETBIOS Datagram Service used in Red Hat Enterprise Linux by Samba
139 TCP UDP netbios-ssn NETBIOS Session Service used in Red Hat Enterprise Linux by Samba
143 TCP UDP imap Internet Message Access Protocol (IMAP)
161 TCP UDP snmp Simple Network Management Protocol (SNMP)
162 TCP UDP snmptrap Traps for SNMP
163 TCP UDP cmip-man Common Management Information Protocol (CMIP)
164 TCP UDP cmip-agent Common Management Information Protocol (CMIP)
174 TCP UDP mailq MAILQ email transport queue
177 TCP UDP xdmcp X Display Manager Control Protocol (XDMCP)
178 TCP UDP nextstep NeXTStep window server
179 TCP UDP bgp Border Gateway Protocol
191 TCP UDP prospero Prospero distributed filesystem services
194 TCP UDP irc Internet Relay Chat (IRC)
199 TCP UDP smux SNMP UNIX Multiplexer
201 TCP UDP at-rtmp AppleTalk routing
202 TCP UDP at-nbp AppleTalk name binding
204 TCP UDP at-echo AppleTalk echo
206 TCP UDP at-zis AppleTalk zone information
209 TCP UDP qmtp Quick Mail Transfer Protocol (QMTP)
210 TCP UDP z39.50 NISO Z39.50 database
213 TCP UDP ipx Internetwork Packet Exchange (IPX), a datagram protocol commonly used in Novell Netware environments
220 TCP UDP imap3 Internet Message Access Protocol version 3
245 TCP UDP link LINK / 3-DNS iQuery service
347 TCP UDP fatserv FATMEN file and tape management server
363 TCP UDP rsvp_tunnel RSVP Tunnel
369 TCP UDP rpc2portmap Coda file system portmapper
370 TCP UDP codaauth2 Coda file system authentication services
389 TCP UDP ldap Lightweight Directory Access Protocol (LDAP)
427 TCP UDP svrloc Service Location Protocol (SLP)
434 TCP UDP mobileip-agent Mobile Internet Protocol (IP) agent
435 TCP UDP mobilip-mn Mobile Internet Protocol (IP) manager
443 TCP UDP https Secure Hypertext Transfer Protocol (HTTP)
444 TCP UDP snpp Simple Network Paging Protocol
445 TCP UDP microsoft-ds Server Message Block (SMB) over TCP/IP
464 TCP UDP kpasswd Kerberos password and key changing services
468 TCP UDP photuris Photuris session key management protocol
487 TCP UDP saft Simple Asynchronous File Transfer (SAFT) protocol
488 TCP UDP gss-http Generic Security Services (GSS) for HTTP
496 TCP UDP pim-rp-disc Rendezvous Point Discovery (RP-DISC) for Protocol Independent Multicast (PIM) services
500 TCP UDP isakmp Internet Security Association and Key Management Protocol (ISAKMP)
535 TCP UDP iiop Internet Inter-Orb Protocol (IIOP)
538 TCP UDP gdomap GNUstep Distributed Objects Mapper (GDOMAP)
546 TCP UDP dhcpv6-client Dynamic Host Configuration Protocol (DHCP) version 6 client
547 TCP UDP dhcpv6-server Dynamic Host Configuration Protocol (DHCP) version 6 Service
554 TCP UDP rtsp Real Time Stream Control Protocol (RTSP)
563 TCP UDP nntps Network News Transport Protocol over Secure Sockets Layer (NNTPS)
565 TCP UDP whoami whoami user ID listing
587 TCP UDP submission Mail Message Submission Agent (MSA)
610 TCP UDP npmp-local Network Peripheral Management Protocol (NPMP) local / Distributed Queueing System (DQS)
611 TCP UDP npmp-gui Network Peripheral Management Protocol (NPMP) GUI / Distributed Queueing System (DQS)
612 TCP UDP hmmp-ind HyperMedia Management Protocol (HMMP) Indication / DQS
631 TCP UDP ipp Internet Printing Protocol (IPP)
636 TCP UDP ldaps Lightweight Directory Access Protocol over Secure Sockets Layer (LDAPS)
674 TCP UDP acap Application Configuration Access Protocol (ACAP)
694 TCP UDP ha-cluster Heartbeat services for High-Availability Clusters
749 TCP UDP kerberos-adm Kerberos version 5 (v5) 'kadmin' database administration
750 TCP UDP kerberos-iv Kerberos version 4 (v4) services
765 TCP UDP webster Network Dictionary
767 TCP UDP phonebook Network Phonebook
873 TCP UDP rsync rsync file transfer services
992 TCP UDP telnets Telnets(Telnet over Secure Sockets Layer)
993 TCP UDP imaps Internet Message Access Protocol over Secure Sockets Layer (IMAPS)
994 TCP UDP ircs Internet Relay Chat over Secure Sockets Layer (IRCS)
995 TCP UDP pop3s Post Office Protocol version 3 over Secure Sockets Layer (POP3S)
512 TCP exec UNIX Authentication for remote process execution
512 UDP biff [comsat] UNIX Asynchrous mail client (biff) and service (comsat)
513 TCP login UNIX Remote Login (rlogin)
513 UDP who [whod] UNIX whod user logging daemon
514 TCP shell [cmd] UNIX Remote shell (rshell) and remote copy (rcp) with no logging
514 UDP syslog UNIX UNIX system logging service
515 TCP UDP printer [spooler] UNIX Line printer (lpr) spooler
517 UDP talk UNIX Talk remote calling service and client
518 UDP ntalk UNIX Network talk (ntalk) remote calling service and client
519 TCP UDP utime [unixtime] UNIX UNIX time (utime) protocol
520 TCP efs UNIX Extended Filename Server (EFS)
520 UDP router [route, routed] UNIX Routing Information Protocol (RIP)
521 TCP UDP ripng UNIX Routing Information Protocol for Internet Protocol version 6 (IPv6)
525 TCP UDP timed [timeserver] UNIX Time daemon (timed)
526 TCP tempo [newdate] UNIX Tempo
530 TCP courier [rpc] UNIX Courier Remote Procedure Call (RPC) protocol
531 TCP conference [chat] UNIX Internet Relay Chat
532 TCP UDP netnews UNIX Netnews newsgroup service
533 UDP netwall UNIX Netwall for emergency broadcasts
540 TCP uucp [uucpd] UNIX UNIX-to-UNIX copy services
543 TCP klogin UNIX Kerberos version 5 (v5) remote login
544 TCP kshell UNIX Kerberos version 5 (v5) remote shell
548 TCP UDP afpovertcp UNIX Appletalk Filing Protocol (AFP) over Transmission Control Protocol (TCP)
556 TCP UDP remotefs [rfs_server, rfs] UNIX Brunhoff's Remote Filesystem (RFS)
1080 TCP UDP socks Registered SOCKS network application proxy services
1236 TCP UDP bvcontrol [rmtcfg] Registered Remote configuration server for Gracilis Packeten network switches
1300 TCP UDP h323hostcallsc Registered H.323 telecommunication Host Call Secure
1433 TCP UDP ms-sql-s Registered Microsoft SQL Server
1434 TCP UDP ms-sql-m Registered Microsoft SQL Monitor
1494 TCP UDP ica Registered Citrix ICA Client
1512 TCP UDP wins Registered Microsoft Windows Internet Name Server
1524 TCP UDP ingreslock Registered Ingres Database Management System (DBMS) lock services
1525 TCP UDP prospero-np Registered Prospero non-privileged
1645 TCP UDP datametrics [old-radius] Registered Datametrics / old radius entry
1646 TCP UDP sa-msg-port [oldradacct] Registered sa-msg-port / old radacct entry
1649 TCP UDP kermit Registered Kermit file transfer and management service
1701 TCP UDP l2tp [l2f] Registered Layer 2 Tunneling Protocol (LT2P) / Layer 2 Forwarding (L2F)
1718 TCP UDP h323gatedisc Registered H.323 telecommunication Gatekeeper Discovery
1719 TCP UDP h323gatestat Registered H.323 telecommunication Gatekeeper Status
1720 TCP UDP h323hostcall Registered H.323 telecommunication Host Call setup
1758 TCP UDP tftp-mcast Registered Trivial FTP Multicast
1759 UDP mtftp Registered Multicast Trivial FTP (MTFTP)
1789 TCP UDP hello Registered Hello router communication protocol
1812 TCP UDP radius Registered Radius dial-up authentication and accounting services
1813 TCP UDP radius-acct Registered Radius Accounting
1911 TCP UDP mtp Registered Starlight Networks Multimedia Transport Protocol (MTP)
1985 TCP UDP hsrp Registered Cisco Hot Standby Router Protocol
1986 TCP UDP licensedaemon Registered Cisco License Management Daemon
1997 TCP UDP gdp-port Registered Cisco Gateway Discovery Protocol (GDP)
2049 TCP UDP nfs [nfsd] Registered Network File System (NFS)
2102 TCP UDP zephyr-srv Registered Zephyr distributed messaging Server
2103 TCP UDP zephyr-clt Registered Zephyr client
2104 TCP UDP zephyr-hm Registered Zephyr host manager
2401 TCP UDP cvspserver Registered Concurrent Versions System (CVS) client/server operations
2430 TCP venus Registered Venus cache manager for Coda file system (codacon port)
2430 UDP venus Registered Venus cache manager for Coda file system (callback/wbc interface)
2431 TCP venus-se Registered Venus Transmission Control Protocol (TCP) side effects
2431 UDP venus-se Registered Venus User Datagram Protocol (UDP) side effects
2432 UDP codasrv Registered Coda file system server port
2433 TCP codasrv-se Registered Coda file system TCP side effects
2433 UDP codasrv-se Registered Coda file system UDP SFTP side effect
2600 TCP UDP hpstgmgr [zebrasrv] Registered Zebra routing
2601 TCP UDP discp-client [zebra] Registered discp client; Zebra integrated shell
2602 TCP UDP discp-server [ripd] Registered discp server; Routing Information Protocol daemon (ripd)
2603 TCP UDP servicemeter [ripngd] Registered Service Meter; RIP daemon for IPv6
2604 TCP UDP nsc-ccs [ospfd] Registered NSC CCS; Open Shortest Path First daemon (ospfd)
2605 TCP UDP nsc-posa Registered NSC POSA; Border Gateway Protocol daemon (bgpd)
2606 TCP UDP netmon [ospf6d] Registered Dell Netmon; OSPF for IPv6 daemon (ospf6d)
2809 TCP UDP corbaloc Registered Common Object Request Broker Architecture (CORBA) naming service locator
3130 TCP UDP icpv2 Registered Internet Cache Protocol version 2 (v2); used by Squid proxy caching server
3306 TCP UDP mysql Registered MySQL database service
3346 TCP UDP trnsprntproxy Registered Transparent proxy
3389 TCP UDP ms-wbt-server Registered Windows Remote Desktop ( RDP Protocol )
4011 TCP UDP pxe Registered Pre-execution Environment (PXE) service
4321 TCP UDP rwhois Registered Remote Whois (rwhois) service
4444 TCP UDP krb524 Registered Kerberos version 5 (v5) to version 4 (v4) ticket translator
5002 TCP UDP rfe Registered Radio Free Ethernet (RFE) audio broadcasting system
5308 TCP UDP cfengine Registered Configuration engine (Cfengine)
5999 TCP UDP cvsup [CVSup] Registered CVSup file transfer and update tool
6000 TCP x11 [X] Registered X Window System services
7000 TCP UDP afs3-fileserver Registered Andrew File System (AFS) file server
7001 TCP UDP afs3-callback Registered AFS port for callbacks to cache manager
7002 TCP UDP afs3-prserver Registered AFS user and group database
7003 TCP UDP afs3-vlserver Registered AFS volume location database
7004 TCP UDP afs3-kaserver Registered AFS Kerberos authentication service
7005 TCP UDP afs3-volser Registered AFS volume management server
7006 TCP UDP afs3-errors Registered AFS error interpretation service
7007 TCP UDP afs3-bos Registered AFS basic overseer process
7008 TCP UDP afs3-update Registered AFS server-to-server updater
7009 TCP UDP afs3-rmtsys Registered AFS remote cache manager service
9876 TCP UDP sd Registered Session Director for IP multicast conferencing
10080 TCP UDP amanda Registered Advanced Maryland Automatic Network Disk Archiver (Amanda) backup services
11371 TCP UDP pgpkeyserver Registered Pretty Good Privacy (PGP) / GNU Privacy Guard (GPG) public keyserver
11720 TCP UDP h323callsigalt Registered H.323 Call Signal Alternate
13720 TCP UDP bprd Registered Veritas NetBackup Request Daemon (bprd)
13721 TCP UDP bpdbm Registered Veritas NetBackup Database Manager (bpdbm)
13722 TCP UDP bpjava-msvc Registered Veritas NetBackup Java / Microsoft Visual C++ (MSVC) protocol
13724 TCP UDP vnetd Registered Veritas network utility
13782 TCP UDP bpcd Registered Veritas NetBackup
13783 TCP UDP vopied Registered Veritas VOPIE authentication daemon
22273 TCP UDP wnn6 [wnn4] Registered Kana/Kanji conversion system
26000 TCP UDP quake Registered Quake (and related) multi-player game servers
26208 TCP UDP wnn6-ds Registered Wnn6 Kana/Kanji server
33434 TCP UDP traceroute Registered Traceroute network tracking tool
15 TCP netstat Unregistered Network Status (netstat)
98 TCP linuxconf Unregistered Linuxconf Linux administration tool
106 TCP UDP poppassd Unregistered Post Office Protocol password change daemon (POPPASSD)
465 TCP smtps Unregistered Simple Mail Transfer Protocol over Secure Sockets Layer (SMTPS)
616 TCP gii Unregistered Gated (routing daemon) Interactive Interface
808 TCP UDP omirr [omirrd] Unregistered Online Mirror (Omirr) file mirroring services
871 TCP supfileserv Unregistered Software Upgrade Protocol (SUP) server
901 TCP swat Unregistered Samba Web Administration Tool (SWAT)
953 TCP UDP rndc Unregistered Berkeley Internet Name Domain version 9 (BIND 9) remote configuration tool
1127 TCP supfiledbg Unregistered Software Upgrade Protocol (SUP) debugging
1178 TCP skkserv Unregistered Simple Kana to Kanji (SKK) Japanese input server
1313 TCP xtel Unregistered French Minitel text information system
1529 TCP support [prmsd, gnatsd] Unregistered GNATS bug tracking system
2003 TCP cfinger Unregistered GNU finger
2150 TCP UDP ninstall Unregistered Network Installation Service
2988 TCP UDP afbackup Unregistered afbackup client-server backup system
3128 TCP squid Unregistered Squid Web proxy cache
3455 TCP UDP prsvp Unregistered RSVP port
5432 TCP UDP postgres Unregistered PostgreSQL database
4557 TCP fax Unregistered FAX transmission service (old service)
4559 TCP hylafax Unregistered HylaFAX client-server protocol (new service)
5232 TCP UDP sgi-dgl Unregistered SGI Distributed Graphics Library
5354 TCP UDP noclog Unregistered NOCOL network operation center logging daemon (noclogd)
5355 TCP UDP hostmon Unregistered NOCOL network operation center host monitoring
5680 TCP canna Unregistered Canna Japanese character input interface
6010 TCP x11-ssh-offset Unregistered Secure Shell (SSH) X11 forwarding offset
6667 TCP UDP ircd Unregistered Internet Relay Chat daemon (ircd)
7100 TCP xfs Unregistered X Font Server (XFS)
7666 TCP tircproxy Unregistered Tircproxy IRC proxy service
8008 TCP UDP http-alt Unregistered Hypertext Tranfer Protocol (HTTP) alternate
8080 TCP UDP webcache Unregistered World Wide Web (WWW) caching service ; Tomcat Service
8081 TCP UDP tproxy Unregistered Transparent Proxy
9100 TCP jetdirect [laserjet, hplj] Unregistered Hewlett-Packard (HP) JetDirect network printing service
9359 TCP UDP mandelspawn [mandelbrot] Unregistered Parallel mandelbrot spawning program for the X Window System
10081 TCP UDP kamanda Unregistered Amanda backup service over Kerberos
10082 TCP amandaidx Unregistered Amanda index server
10083 TCP amidxtape Unregistered Amanda tape server
20011 TCP UDP isdnlog Unregistered Integrated Services Digital Network (ISDN) logging system
20012 TCP UDP vboxd Unregistered ISDN voice box daemon (vboxd)
22305 TCP wnn4_Kr Unregistered kWnn Korean input system
22289 TCP wnn4_Cn Unregistered cWnn Chinese input system
22321 TCP wnn4_Tw Unregistered tWnn Chinese input system (Taiwan)
24554 TCP UDP binkp Unregistered Binkley TCP/IP Fidonet mailer daemon
27374 TCP UDP asp Unregistered Address Search Protocol
60177 TCP UDP tfido Unregistered Ifmail FidoNet compatible mailer service
60179 TCP fido Unregistered FidoNet electronic mail and news network
Common Ports And Protocols List-summary

A complete list of common ports and protocols online, listing common port numbers, protocols used, service names, service descriptions and other information.

Common Ports And Protocols List-instructions
  1. Enter any port number or keyword in the input box to search. The case of the keyword is ignored.
  2. Tag in port Description:
    UNIX : UNIX-specific ports.
    Registered : Ports submitted by the network and software community to the IANA for formal registration.
    Unregistered : Unregistered ports that are used by services and protocols.