Hi
The ability to bring your own IP addresses (BYOIP) to Azure is currently available in all regions.
Onboarding your ranges to Azure can be done through the Azure portal, Azure PowerShell, Azure CLI, or by using Azure Resource Manager (ARM) templates. In order to bring a public IP range to use on Azure, you must own and have registered the range with a Routing Internet Registry such as ARIN or RIPE. When bringing an IP range to use on Azure, it remains under your ownership, but Microsoft is permitted to advertise it from our Wide Area Network (WAN).
Cheers