Where to Find port numbers for well-known services defined by IANA

Port Numbers and Protocols for well-known services defined by IANA
If we want to know the Port Numbers and Protocols used by Well known services defind by IANA on Our Machine,we can check this out as follows,

Go to C:\WINDOWS\system32\drivers\etc.
Find the File named "Services".Type of file is "File".
We can open this file in Notepad,wordpad,etc.
This file shows all details in following format,
Format:
Service Name Port Number/Protocol aliases Comments
ms-sql-s 1433/tcp -- #Microsoft-SQL-Server
ms-sql-s 1433/udp -- #Microsoft-SQL-Server