When looking for the Office 365 URLs and IP address ranges are with that way pretty useless. There is only four sections Exchange, SharePoint, Skype and Common. It should not be big surprise that companies might not want to use "all or nothing" rules. Is there any hope to get details descriptions what these items are? E.g. why do you have lot of rows with names, but no IP addresses at all. How do you expect we should be able to use them? E.g. What is needed for Stream services, or Live Events?