An IP range is a contiguous block of IP addresses that are allocated to a single organization or individual. Checking IP ranges is a common task for network administrators and IT professionals, as it can help to identify potential security risks, troubleshoot network issues, and manage IP address allocation.
There are a number of different ways to check IP ranges, including using online tools, command-line tools, and programming libraries. The most common method is to use an online tool, such as the one provided by ARIN (the American Registry for Internet Numbers). This tool allows you to enter a range of IP addresses and it will return a list of all the organizations that are allocated those addresses.