For the port on the server side, "well-known port numbers" are often used. For example, to communicate via http, port 80 is used as a standard. However, it is also possible to use non-standard ports.
For the client side, in many cases "dynamic numbers" are used - that is, one connection may use port number 1024, another may use port number 1025, the next 1026, etc. - or some other, more or less arbitrary, number in the valid range (up to about 65,000). The only requirement is that the port number be as yet unused - and I suspect that different implementations of TCP/IP might use different methods for assigning the dynamic numbers.
there is no set measure for port
By default, your minecraft port number is 25565, unless you've changed it this is your port number.
There is no port number for facebook.com Sorry
The Tritton only needs your P2P application's port number and your computer's IP to enable port forwarding for P2P.
IMAP port is the port number the IMAP protocol uses to transfer data. The standard IMAP Port number is 143
The default port number depends on the protocol. If a URL starts, for example, with "http://", then the default port number will be 80. For other protocols, other default port numbers are used.The default port number depends on the protocol. If a URL starts, for example, with "http://", then the default port number will be 80. For other protocols, other default port numbers are used.The default port number depends on the protocol. If a URL starts, for example, with "http://", then the default port number will be 80. For other protocols, other default port numbers are used.The default port number depends on the protocol. If a URL starts, for example, with "http://", then the default port number will be 80. For other protocols, other default port numbers are used.
A full numeric IP address with port number is XX.XX.XX.XX:PPPP where the "X"s are the IP address and the "P"s are the port number.
Port number of SMTP is 25 and of IMAP is 143. (These are the standard port numbers used)
False - Port Number is the address on the host.
port 80
You set the port that uTorrent uses at Options>Preferences>Connection
Implicit FTPS runs on port 990 by default.