All IP addresses of Her Majesty's Revenue and Customs
All IP ranges of all Internet Service Providers (ISPs) and organizations with dedicated IP ranges.
Link to your report: https://w-e-b.site/?act=report&id=9bd5297ca56b4790e3fba980a8780d0cAll IP ranges of Her Majesty's Revenue and Customs
163.171.0.0/18