Azure Firewall
An Azure network security service that is used to protect Azure Virtual Network resources.
Azure Service Tags: Which Service Tag(s) cover which MS Auth URLs/IPs
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BATCHELOR Richard
0
Reputation points
We are trying to migrate away from using Azure service tags in our Azure firewall, to enable more specific control over the endpoints/URLs that can be accessed.
We are trying to identify which service tag(s) cover the following authentication URLs:
- login.microsoft.com
- login.microsoftonline.com
- login.live.com
- login.windows.net
And, for those service tag(s), what the full list of URLs/IPs that would need to be implemented in their place.
Thanks
Azure Firewall
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Tchimwa Sougang 946 Reputation points Microsoft Employee2026-08-20T04:25:45+00:00 Hello Richard!
Please find my answer below:
All four authentication endpoints — login.microsoft.com, login.microsoftonline.com, login.live.com, and login.windows.net are covered by the AzureActiveDirectory service tag.
{ "name": "AzureActiveDirectory", "id": "AzureActiveDirectory", "properties": { "addressPrefixes": [ "20.190.128.0/18", "40.126.0.0/18", ... ] } }
Download the JSON file to have the latest IP as they change all the time: https://www.microsoft.com/en-us/download/details.aspx?id=56519
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Tchimwa Sougang 946 Reputation points Microsoft Employee
2026-08-24T10:48:38.43+00:00 Hi @BATCHELOR Richard , did the answer help you resolve your issue?
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