@Alan Tseng (AATN) , Thank you for your question.
At the time of writing I can see datacenter locations in the United States and Europe as follows:
The United States:
Europe:
In some cases, data for certain services may be stored outside of specified regions. See Additional information for details.
For more information I would encourage you to Select your geography here to see Azure Data Residency.
You can also refer to Azure Geographies.
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Hope this helps.
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