Number Type Keyword Description
------ ---- ------- ----------------------------
1 tcp tcpmux TCP Port Service Multiplexer#
7 tcp/udp echo
9 tcp/udp discard sink null
11 tcp/udp systat users
13 tcp/udp daytime
15 tcp netstat
17 tcp/udp qotd Quote of the Day
19 tcp/udp chargen ttytst source character generator
20 tcp ftp-data
21 tcp ftp File Transfer Protocol
22 tcp ssh secure shell
23 tcp telnet
25 tcp smtp Simple Mail Transfer Protocol
37 tcp/udp time timserver
39 udp rlp resource # resource location
42 tcp/udp name Host Name Server (Replaced by domain)
43 tcp nicname Who IS # usually to sri-nic
49 tcp/udp tacacs Login Host Protocol (TACACS) Terminal
Access Controller Access Control System
53 tcp/udp domain DNS Domain Name Server
57 tcp mtp # deprecated
64 tcp covia Communications Integrator (CI)
67 udp bootps # bootp server
68 udp bootpc # bootp client
69 tcp/udp tftp Trivial FTP
70 tcp/udp gopher Information Retrieval Protocol
77 tcp rje remote job entry
79 tcp finger query for user account information
80 tcp/udp http WWW World Wide Web HTTP
81 tcp/udp hosts2-ns HOSTS2 Name Server
87 tcp link ttylink
88 tcp/udp kerberos kdc # Kerberos authentication--tcp
95 tcp/udp supdup # BSD supdupd(8) efficient display telnet protocol
101 tcp/udp hostname hostname # usually to sri-nic
102 tcp iso-tsap Transport Service Access Point (ISO on top of the TCP
103 tcp x400 # ISO Mail
104 tcp x400-snd
105 tcp csnet-ns Mailbox Name Nameserver
106 Password Server (Apple - unregistered)
109 tcp pop2 # PostOffice V.2
110 tcp pop3 # PostOffice V.3
111 tcp/udp sunrpc portmapper # RPC 4.0 portmapper (rcpbind) Sun Remote Procedure Call
113 tcp auth ident Authentication Service # User Verification
115 tcp/udp sftp Simple File Transfer Protocol
117 tcp/udp uucp-path UNIX to UNIX Copy
118 tcp sqlserv SQL Service
119 tcp nntp usenet # Network News Transfer Protocol
123 tcp/udp ntp # Network Time Protocol
133 tcp/udp statsrv # statistics server
135 tcp/udp epmap DCE endpoint resolution
135 tcp loc-srv location service
137 tcp/udp netbios-ns nbns Name Service [NetBeui, SMB, CIFS]
138 tcp/udp netbios-dgm nbdgm Datagram Servic [NetBeui, SMB, CIFS]
139 tcp netbios-ssn nbssn Session Service [NetBeui, SMB, CIFS]
143 tcp imap # imap Internet Message Access Protocol
144 tcp NeWS news # Window System
150 tcp sql-net SQL-NET
161 udp snmp Simple Network Management Protocol
162 udp snmp-trap
179 tcp/udp bgp Border Gateway Protocol
191 udp prospero Prospero Directory Service
256 tcp/udp rap RAP Route Access Protocol
257 tcp/udp set Secure Electronic Transaction
311 AppleShare IP WebAdmin
389 tcp/udp ldap Lightweight Directory Access Protocol
414 tcp infoseek Infoseek
416 tcp silverplatter Silverplatter
417 tcp onmux Onmux
418 tcp hyper-g Integrated Hypermedia Server
419 tcp/udp ariel Ariel - Document delivery in TIFF format
421 tcp/udp ariel2 Ariel
422 tcp/udp ariel3 Ariel
423 tcp/udp opc-job-start IBM Operations Planning and Control Start
424 tcp/udp opc-job-track IBM Operations Planning and Control Track
427 SLP Service Location Protocol (Network Browser)
443 tcp/udp https http protocol over TLS/SSL
445 tcp/upd microsoft-ds Microsoft-DS
465 tcp nntp NNTP over SSL
500 IPSec, PPTP, L2TP
512 tcp exec # BSD rexecd(8) Remote process execution
512 udp biff comsat - Mail Notification protocol
513 tcp/udp login # BSD rlogind(8) remote login
513 udp who whod # BSD rwhod(8)
514 tcp shell cmd # BSD rshd(8) remote shell (no passwords)
514 udp syslog # BSD syslogd(8)
515 tcp printer spooler lpr, lpd# BSD lpd(8)
517 udp talk # BSD talkd(8)
518 udp ntalk # SunOS talkd(8)
520 tcp efs # for LucasFilm
520 udp route router routed # 521/udp too
525 udp timed timeserver
526 tcp tempo newdate
530 tcp courier rpc # experimental
531 tcp conference chat
532 tcp netnews readnews
533 udp netwall # -for emergency broadcasts
540 tcp uucp uucpd # BSD uucpd(8) UUCP service
543 tcp klogin # Kerberos authenticated rlogin
544 tcp kshell cmd # and remote shell
548 AFP Apple Filing Protcol (AFP) over TCP
550 udp new-rwho new-who # experimental
554 rtsp Real Time Streaming Protocol
556 tcp remotefs # Brunhoff remote filesystem rfs_server rfs
560 udp rmonitor rmonitord # experimental
561 udp monitor # experimental
563 tcp smtp SMTP over SSL
600 tcp pcserver # ECD Integrated PC board srvr
600-
1023 Mac Apple OS X RPC-based services (e.g. Netinfo)
610 tcp npmp-local npmp-local
611 tcp npmp-gui npmp-gui
610 tcp cpiod # ABARS stuff; 2-13-92
611 tcp ifind # ABARS stuff; 2-13-92
612 tcp restitd # ABARS stuff; 2-13-92
625 Directory Svc Directory Service Proxy (DSProxy) Apple unregistered
631 IPP Internet Printing Protocol (Apple)
635 udp mount
635 udp mount # NFS Mount Service
640 udp pcnfs # PC-NFS DOS Authentication
650 udp bwnfs # BW-NFS DOS Authentication
674 udp acap ACAP
729 tcp netviewdm1 IBM NetView DM/6000 Server/Client
730 tcp netviewdm2 IBM NetView DM/6000 send/tcp
731 tcp netviewdm3 IBM NetView DM/6000 receive/tcp
741 tcp netgw netGW
749 tcp/udp kerberos-adm # Kerberos 5 admin changepw
750 tcp/udp kerberos-iv kdc # Kerberos key server
750 tcp/udp kerberos-sec # Kerberos authentication--tcp
751 tcp/udp kerberos_master # Kerberos authentication
752 tcp kerberos_adm # Kerberos 5 admin/changepw
752 udp passwd_server # Kerberos passwd server
754 tcp krb5_prop # Kerberos slave propagation
801 tcp/udp device
901 tcp sabarsd
902 tcp abarsd
905 tcp admind
1001 tcp onlinetli # TCP/IP TLI (Transport Level Interface) Server
1002 tcp inf71tli # TCP/IP TLI Server
1003 tcp inf713tli # TCP/IP TLI Server
1004 tcp ontraca # TCP/IP TLI Server
1005 tcp ontracb # TCP/IP TLI Server
1006 tcp inf721tli # TCP/IP TLI Server
1007 tcp sig71tli # TCP/IP TLI Server
1008 tcp/udp ufsd # UFS-aware server
1009 tcp ontrac71tli # TCP/IP TLI Server
1024 tcp reserved
1025 tcp listen listener RFS remote_file_sharing
1026 tcp nterm remote_login network_terminal
1030 tcp iad1 BBN IAD Integrated Access Device
1031 tcp iad2 BBN IAD
1032 tcp iad3 BBN IAD
1109 tcp kpop # Pop with Kerberos
1352 tcp/udp lotusnote Lotus Note
1414 tcp/udp ibm-mqseries IBM MQSeries
1723 tcp pptp Point to Point Tunneling Protocol
1521 tcp/udp ncube-lm nCube License Manager
1524 tcp ingreslock
1525 tcp orasrv oracle
1525 tcp sqlexec # Informix-net
1525 tcp prospero-np Prospero Directory Service non-priv
1526 tcp pdap-np Prospero Data Access Prot non-priv
1600 tcp tnet # transputer net daemon
1701 L2TP Also used 500
1723 pptp Also used 500
1750 tcp/udp sslp Simple Socket Library's PortMaster
2000 tcp/udp callbook (Ham Packet Radio callsign server)
2001 tcp dc (Also used for telnet on cisco routers)
2001 udp wizard curry
2003 tcp cfinger # GNU finger
2049 udp nfsd nfs # NFS server daemon
2105 tcp eklogin # Kerberos encrypted rlogin
2766 tcp listen # System V listener port
3000 tcp HBCI
3689 tcp/udp DAAP Digital Audio Access Protocol - iTunes music sharing
4001 tcp/udp newoak NewOak (Also used for telnet on cisco routers)
4045 tcp lockd
4045 tcp/udp lockd # NFS lock daemon/manager
4444 tcp krb524 # Kerberos 5 to 4 ticket xlator krb524
4444 tcp/udp nv-video NV-Video
5000 tcp/udp complex-main
5001 tcp/udp complex-link
5631 tcp/udp pcanywhere pcAnywhere
5632 tcp/udp pcanywhere pcAnywhere
6001 tcp/udp x11 (Also used for telnet on cisco routers)
6002 tcp smax SmaxAgent # Smax agent
6000-63 tcp/udp x11 X Window System
6112 tcp dtspc # CDE subprocess control
6667 tcp/udp irc # Internet Relay Chat
7000 tcp dos msdos
7000-09 tcp/udp afs Andrew File System
7100 tcp fs # Font server
7999 tcp irdmi iRDMI2
8000 tcp irdmi iRDMI or http www Sometimes used as an alternate for port 80
8001 tcp/udp http www Sometimes uses as an alternate for port 80
8080 tcp/udp http www Sometimes uses as an alternate for port 80
8888 tcp/udp http www Sometimes uses as an alternate for port 80
9001 tcp cisco (used for telnet on cisco routers)
The port numbers are divided into three ranges: the Well Known Ports, the Registered Ports, and the Dynamic and/or Private Ports.
The Well Known Ports are those from 0 through 1023. Only system (or root) processes or programs executed by privileged users can listen on these ports.
The Registered Ports are those from 1024 through 49151. These are commonly used for local applications which are not registered.
The Dynamic and/or Private Ports are those from 49152 through 65535