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