All websites are accessible by URLs, but on occasion, you might need to access pages that aren’t really on the internet. It could be something like a Wi-Fi router’s configuration page, or a page within an internal server. When that’s the case, however, you usually just type in an IP address rather than actually typing in a URL. With a new TLD, ICANN wants to change this.
Source : ICANN Pushes to Replace the 192.168.x.x Top-Level Domain