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6. TCP/IP Port List for Internet Service
The list of TCP/IP Port for Internet service is as following table. Please note that the list is just
for your reference. You may check the service provider’s manual to see more details.
Service Name TCP UDP Notes
AOL
5190-5193 5190-5193 American OnLine
AOL ICQ
5190, dyn >=1024
Message
AOL Instant Messenger
5190 5190 American OnLine
Citrix ICA
1494, dyn >=1023 1604, dyn >=1023
Remote application access
DirectX Gaming
47624, 2300-2400 47624, 2300-2400
many network games
Distributed.Net RC5/DES
2064 Distributed computation
DNS
53 Domain name Service
Doom
666 666 Network game
FTP
21
File Transfer Protocol
Glimpseserver
2001 Search engine
Gopher
70
H.323 Host Call
1720 1720 H.323 host call
HTTPs
443 Secure HTTP (SSL)
ichat client, server
4020 4020 Chat rooms
ICU II
2000-2003
Videoconferencing
iSpQ
2000-2003 Videoconference
LDAP
389 389 Lightweight Directory Access Protocol
Mirabilis ICQ
dyn >=1024 4000 Locator, chat
MS ICCP
1731 1731 Audio call control (Microsoft)
MS Netmeeting
dyn >=1024, dyn >=1024 Video conference
MS NetShow
1755 1755 Streaming video
MSN Gaming Zone
28800-29000 28800-29000 Network Game
MSN Messenger
1863
Instant messenging
Netscape Conference
6498, 6502 2327 Audio conference
NNTPs
563 Secure NNTP news (SSL)
Palm Computing Network Hotsync
14237 14238 Data synchronization
pcAnywhere
5631 5632 Remote control
POP3
110 Post Office Protocol Version 3
QuickTime 4
RTSP RTP Streaming audio, video
Real Audio & Video
RTSP, 7070 6970-7170 Streaming audio and video
Remotely Possible (ControlIT)
799 Remote control software by CA
RTSP
554 Real Time Streaming Protocol