Hello there, I'm sharing some useful resources around Microsoft Azure available on the Microsoft Download Center site.
The first download is about the Microsoft Azure Datacenter IP Ranges.
This file contains the Compute IP address ranges (including SQL ranges) used by the Microsoft Azure Datacenters, which you can share with your IT/ Network/ InfoSec teams for their information when setting up a Hybrid Cloud with Microsoft Azure. Each section specifies the geographic region and the IP address ranges associated with that region.
The second document one contains mini case studies on Microsoft Azure featuring ISVs for your reference.