SageWorld

Commonly Probed Ports


The following table, obtained displays a general list of which programs and network services access which ports. Many services/programs can access any port. As a general rule, ports below 1,024 are reserved for system use. The maximum port number is 65,536. Any port can be used by hackers if there's a trojan on the system or if networking is enabled on the system.
 

Service TCP UDP
LDAP 389 389
Timbuktu 1417-1420 407
HTTPs 443  
ULP 522 522
RTSP 554  
NNTPs 563  
Doom 666 666
Remotely Possible (ControlIT) 799  
SOCKS 1080  
Lotus Notes Domino 1352  
VocalTec Internet Phone 1490, 6670, 25793 22555
Virtual Places 1533  
Xing StreamWorks   1558
H.323 Host Call 1720 1720
MS ICCP 1731 1731
MSN Messenger 1863  
ICU II 2000-2003  
iSpQ 2000-2003  
glimpseserver 2001  
Distributed.Net RC5/DES 2064  
Netrek 2592  
squid 3128 3130
Virtual Places Voice Chat 3450, 8000-9000  
ichat client, server 4020 4020
PGPfone   4747
PlayLink 4747, 4748, 10090 6144
AOL Instant Messenger 5190 5190
AOL 5190-5193 5190-5193
Dialpad.com 5354, 7175, 8680-8890, 9000, 9450-9460  
pcAnywhere 5631 5632
eShare Chat Server 5760  
eShare Web Tour  5761  
eShare Admin Server 5764  
VNC 5800+, 5900+  
GNUtella 6346, 6347 6346, 6347
Danware NetOp Remote Control 6502 6502
common IRC 6665-6669  
VDOLive 7000 user-specified
RTP   6970-6999
Real Audio & Video 7070 6970-7170
CU-SeeMe, Enhanced CUSM 7648, 7649 7648-7652, 24032
common HTTP 8000, 8001, 8080  
iVisit   9943, 9945, 56768
The Palace 9992-9997 9992-9997
common Palace 9998  
Palm Computing Network Hotsync 14237 14238
Liquid Audio 18888  
FreeTel   21300-21303
VocalTec Internet Conference 22555 22555
Quake 26000 26000
MSN Gaming Zone 28800-29000 28800-29000
Sygate Manager   39213
DirectX Gaming 47624, 2300-2400 47624, 2300-2400
 

For a comprehensive list of ports and the services using them, in text format, use the following download. 

Comprehensive Port List