Port 75 is not officially assigned to any specific service or application. However, it is sometimes used for a variety of purposes by different companies or organizations. It may be used for a simple file transfer protocol, as a backdoor port, or for remote access to a device or system. Its usage is not standardized and depends on the individual needs and requirements of the user.
Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.
Official
Port | Protocol (TCP/UDP) | Title | Description | Port Type |
Port 75 | tcp | any private dial service | WELL KNOWN PORT | |
Port 75 | udp | any private dial service | WELL KNOWN PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
Port | Protocol (TCP/UDP) | Description |