Microsoft network endpoints

Firewalls and proxies depend on the URLs and IP ranges Microsoft publishes. Microsoft updates them in place; we keep every version and show what changed.

Microsoft 365

URLs, IP ranges and ports per instance, and Microsoft's change log.

Azure public cloud

Service tags and their IP prefixes, from the weekly file.

Azure Government

Service tags for the US government cloud.

Azure China

Service tags for the cloud operated by 21Vianet.