Legend | Well Known Ports | Registered Ports | Ephemeral Ports |
This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.
The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports . [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the well-known ports. [5]