Which port is used by Telnet for remote communication?

Telnet uses port 23 for remote communication. This protocol enables users to access and manage remote devices over a network, allowing them to execute commands as if they were directly connected. Telnet operates on a client-server model and, by using port 23, establishes a connection that allows the transmission of data in plain text. While Telnet is useful for remote management, it is important to note that it is not secure because data, including usernames and passwords, is sent unencrypted. This vulnerability has led to the preference for more secure alternatives like SSH, which operates on a different port, specifically port 22.