TCP Port Numbers

by Wayne Maples [Published on 20 April 2004 / Last Updated on 20 April 2004]

Windows NT's assigned TCP ports are stored in the

%systemroot%\system32\drivers\etc\SERVICES

file. Click here to view the SERVICES file on your NT workstation SERVICES file (assumes standard C:\winnt\system32\drivers\etc\ path and that you are running NT workstation). Ports are classified as Well Known Ports, Registered Ports, and the Dynamic or Private Ports.

See TCP/IP Ports Used by Windows NT, Terminal Server and Exchange

See TCP/IP Ports Used by W2K: PortAssignments for Commonly-Used Services

See Port Numbers for a standard list derived from RFC793 (TCP) and RFC768 (UDP) standards.

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