The –n Switch

The –n Switch
The -n switch is a modifier for the other switches. When used with other switches, it reverses the natural tendency of netstat to use names instead of network addresses. In other words,
when you use the –n switch, the output always displays network addresses instead of their associated network names. Following is output from the netstat command and then the netstat -n command, showing the same information but with IP addresses instead of names: