If you are not sure that Port Number you are going to used has been assignned for what purpose. You can lookup our port database and find details related to assignment Port or Protocol assigned by IANA (Internet Assigned Numbers Authority).
This service allows you to map the port number to a port is unknown.
For the search, the official database of ports and protocols from IANA (Internet Assigned Numbers Authority) is used. IANA is an organization that manages Internet protocol parameters, as well as IP address spaces and top-level domains.
The entire range of port numbers (from 0 to 65535) is divided into three categories.
0 - 1023 Well-Known Ports The
numbers are reserved by IANA for system processes or network programs with administrative rights. Ports from this category should not be used without registering with IANA.
1024 - 49151 Registered Ports
Ports registered for use by conventional programs and application layer protocols. This category of ports is most popular for commercial software. Registration is also required to use any port.
49152 - 65535 Dynamic ports
Designed for free but temporary use. Registration of ports in this category is not possible.
Open port checker site allows you test open ports in your system. You can easily verify if any port is opened or not not by typing your IP address or domain name and desired port number.