![]() ![]() Here are some port numbers assigned to popular networking protocols: ![]() A port number can also be temporarily assigned for the request’s duration. Dynamic or private ports range from 49,152 to 65,535 and are available to anyone. To register a specific port number, you can choose from 1024 to 49,151. The well-known ports numbered from 0 through 1023 are usually reserved by large companies and popular services such as Apple QuickTime and Structured Query Language (SQL). In total, there are 65,535 port numbers assigned to different protocols and divided into three ranges: the well-known ports, the registered ports, and the dynamic or private ports. The initial term was socket number and had a 40-bit quantity. The concept of port numbers was first introduced by the early developers of the ARPANET back in the seventies. All network-connected devices come equipped with standardized ports that have an assigned number. ![]() What are port numbers?Ī port number identifies each transport protocol and address combination with a 16-bit unsigned integer. Ports ensure the network connections arrive in the right place, and the traffic remains steady. In simple terms, a port in networking is a software-defined number associated with a network protocol that receives or transmits communications for a specific service. But what exactly does a port do? And why it’s numbered like that? This article provides the answers. When you install an SSL certificate, one of the steps is to select port 443 – the default port for the HTTPS connection. How to Change My Site from HTTP to HTTPS. ![]()
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