How to check the location of an Office 365 tenant and Office 365 mailboxes

Problem:

You would like to know the Azure region of your Office 365 tenant and what Microsoft datacenters host your Office 365 mailboxes.

Solution:

You can view the location of your Office 365 tenant in the Microsoft 365 admin center (Office 365 admin center) or by accessing your Exchange Online via PowerShell and executing appropriate cmdlets. Exchange Online cmdlets will also let you find out the exact location of your Office 365 mailboxes.

Use the links below to learn how to:

• locate an Office 365 tenant
• locate an Office 365 mailbox

Locating an Office 365 tenant

The Azure region of an Office 365 tenant is set when you create the tenant and pick the billing country. If you want to check its region, you can find it out:

• in the Microsoft 365 admin center of your tenant,
• via PowerShell.

To find the location of an Office 365 tenant, you need to:

1. Log in to your Microsoft 365 admin center.
2. In the left menu, click Settings and choose Org settings (Fig. 1., item 1).
3. Go to the Organization profile tab (Fig. 1., item 2) and select Data location (Fig. 1., item 3) from the list.

Fig. 1. Accessing the Data location information.

4. The information on the tenant’s location can be found in the Data location section at the bottom of the window (Fig. 2.).

Fig. 2. Location of your Office 365 data.

To find the location of an Office 365 tenant via PowerShell, you need to:

1. Connect to Exchange Online by using Windows PowerShell (see this article for guidelines).
2. Run the Get-OrganizationalUnit cmdlet in PowerShell to display a list of your tenant’s properties. You can guess the region where your tenant is located by looking at the value of the OrganizationId property. In Fig. 3., EURP suggests that the tenant is located in Europe.

Fig. 3. Finding the OrganizationId property and its value.

Locating an Office 365 mailbox

Your Office 365 data can be spread out across multiple datacenters in a given region. To find out the exact location of a mailbox:

1. Connect to Exchange Online via Windows PowerShell.
2. Execute the Get-Mailbox cmdlet in PowerShell to display a list of your Office 365 mailboxes (Fig. 4.).

Fig. 4. A list of mailboxes hosted on Exchange Online.

The first two letters of the ServerName column are the datacenter code. In the example above:

• vi stands for Vienna, Austria
• he stands for Helsinki, Finland
• db stands for Dublin, Ireland
• am stands for Amsterdam, the Netherlands