What range of ports can either be used by TCP to identify the requested service on the destination device or as a client source port?

TCP ports can range from 0 to 65535. The well-known ports, which range from 0 to 1023, are typically reserved for specific services (e.g., HTTP uses port 80, HTTPS uses port 443). Ports ranging from 1024 to 49151 are known as registered ports and can be used by user applications. Ports from 49152 to 65535 are dynamic or private ports and are usually assigned temporarily for client source ports during communication.