| Port | Service |
|---|
| 7 | Echo |
| 19 | Chargen |
| 20-21 | FTP |
| 22 | SSH/SCP |
| 23 | Telnet |
| 25 | SMTP |
| 42 | WINS Replication |
| 43 | WHOIS |
| 49 | TACACS |
| 53 | DNS |
| 67-68 | DHCP/BOOTP |
| 69 | TFTP |
| 70 | Gopher |
| 79 | Finger |
| 80 | HTTP |
| 88 | Kerberos |
| 102 | MS Exchange |
| 110 | POP3 |
| 113 | Ident |
| 119 | NNTP (Usenet) |
| 123 | NTP |
| 135 | Microsoft RPC |
| 143 | IMAP4 |
| 161-162 | SNMP |
| 177 | XDMCP |
| 179 | BGP |
| 201 | AppleTalk |
| 264 | BGMP |
| 318 | TSP |
| 143 | IMAP4 |
| 381-383 | HP Openview |
| 389 | LDAP |
| 411-412 | Direct Connect |
| 443 | HTTP over SSL |
| 445 | Microsoft DS |
| 464 | Kerberos |
| 465 | SMTP over SSL |
| 497 | Retrospect |
| 500 | ISAKMP |
| 512 | rexec |
| 513 | rlogin |
| 514 | syslog |
| 515 | LPD/LPR |
| 520 | RIP |
| 521 | RIPng (IPv6) |
| 540 | UUCP |
| 546-547 | DHCPv6 |
| 554 | RTSP |
| 560 | rmonitor |
| 563 | NNTP over SSL |
| 587 | SMTP |
| 591 | FileMaker |
| 593 | Microsoft DCOM |
| 631 | Internet Printing |
| 636 | LDAP over SSL |
| 639 | MSDP (PIM) |
| 646 | LDP (MPLS) |
| 691 | MS Exchange |
| 860 | iSCSI |
| 873 | rsync |
| 902 | VMware Server |
| 989-990 | FTP over SSL |
| 993 | IMAP4 over SSL |
| 995 | POP3 over SSL |
| 1025 | Microsoft RPC |
| 1026-1029 | Windows Messenger |
| 1080 | SOCKS Proxy |
| 1080 | MyDoom |
| 1194 | OpenVPN |
| 1214 | Kazaa |
| 1241 | Nessus |
| 1311 | Dell OpenManage |
| 1337 | WASTE |
| 1433-1434 | Microsoft SQL |
| 1512 | WINS |
| 1589 | Cisco VQP |
| 1701 | L2TP |
| 1723 | MS PPTP |
| 1725 | Steam |
| 1741 | CiscoWorks 2000 |
| 1755 | MS Media Server |
| 1812-1813 | RADIUS |
| 1863 | MSN |
| 1985 | Cisco HSRP |
| 2000 | Cisco SCCP |
| 2002 | Cisco ACS |
| 2049 | NFS |
| 2082-2083 | cPanel |
| 2100 | Oracle XDB |
| 2222 | DirectAdmin |
| 2302 | Halo |
| 2483-2484 | Oracle DB |
| 2745 | Bagle.H |
| 2967 | Symantec AV |
| 3050 | Interbase DB |
| 3074 | XBOX Live |
| 3124 | HTTP Proxy |
| 3127 | MyDoom |
| 3128 | HTTP Proxy |
| 3222 | GLBP |
| 3260 | iSCSI Target |
| 3306 | MySQL |
| 3389 | Terminal Server |
| 3689 | iTunes |
| 3690 | Subversion |
| 3724 | World of Warcraft |
| 3784-3785 | Ventrilo |
| 4333 | mSQL |
| 4444 | Blaster |
| 4664 | Google Desktop |
| 4672 | eMule |
| 4899 | Radmin |
| 5000 | UPnP |
| 5001 | Slingbox |
| 5001 | iperf |
| 5004-5005 | RTP |
| 5050 | Yahoo! Messenger |
| 5060 | SIP |
| 5190 | AIM/ICQ |
| 5222-5223 | XMPP/Jabber |
| 5432 | PostgreSQL |
| 5500 | VNC Server |
| 5554 | Sasser |
| 5631-5632 | pcAnywhere |
| 5800 | VNC over HTTP |
| 5900+ | VNC Server |
| 6000-6001 | X11 |
| 6112 | Battle.net |
| 6129 | DameWare |
| 6257 | WinMX |
| 6346-6347 | Gnutella |
| 6379 | Redis |
| 6500 | GameSpy Arcade |
| 6566 | SANE |
| 6588 | AnalogX |
| 6665-6669 | IRC |
| 6679/6697 | IRC over SSL |
| 6699 | Napster |
| 6881-6999 | BitTorrent |
| 6891-6901 | Windows Live |
| 6970 | Quicktime |
| 7212 | GhostSurf |
| 7648-7649 | CU-SeeMe |
| 8000 | Internet Radio |
| 8080 | HTTP Proxy |
| 8086-8087 | Kaspersky AV |
| 8118 | Privoxy |
| 8200 | VMware Server |
| 8500 | Adobe ColdFusion |
| 8767 | TeamSpeak |
| 8866 | Bagle.B |
| 9100 | HP JetDirect |
| 9101-9103 | Bacula |
| 9119 | MXit |
| 9800 | WebDAV |
| 9898 | Dabber |
| 9988 | Rbot/Spybot |
| 9999 | Urchin |
| 10000 | Webmin |
| 10000 | BackupExec |
| 10113-10116 | NetIQ |
| 11211 | Memcache/Memcached |
| 11371 | OpenPGP |
| 12035-12036 | Second Life |
| 12345 | NetBus |
| 13720-13721 | NetBackup |
| 14567 | Battlefield |
| 15118 | Dipnet/Oddbob |
| 19226 | AdminSecure |
| 19638 | Ensim |
| 20000 | Usermin |
| 24800 | Synergy |
| 25999 | Xfire |
| 27015 | Half-Life |
| 27374 | Sub7 |
| 28960 | Call of Duty |
| 31337 | Back Orifice |
| 33434+ | traceroute |