Identify devices as corporate-owned

As an Intune admin, you can identify devices as corporate-owned to refine management and identification. Intune can perform additional management tasks and collect additional information such as the full phone number and an inventory of apps from corporate-owned devices. You can also set device restrictions to block enrollment by devices that aren't corporate-owned.

At the time of enrollment, Intune automatically assigns corporate-owned status to devices that are:

After enrollment, you can change the ownership setting between Personal and Corporate.

Identify corporate-owned devices with IMEI or serial number

As an Intune admin, you can create and import a comma-separated value (.csv) file that lists 14-digit IMEI numbers or serial numbers. Intune uses these identifiers to specify device ownership as corporate during device enrollment. Each IMEI or serial number can have details specified in the list for administrative purposes.

This feature is supported for the following platforms:

Platform IMEI numbers Serial numbers
Windows Not supported Not supported
iOS/iPadOS Supported in some cases. See Important note below. Supported
macOS Not supported Supported
Android device administrator, before Android v10 Supported Supported
Android device administrator, Android v10 and later Not supported Not supported
Android Enterprise personally owned work profile, before Android 12 Supported Supported
Android Enterprise personally owned work profile, Android 12 and later Not supported Not supported
Android Enterprise corporate-owned work profile Not supported Not supported
Android Enterprise fully managed Not supported Not supported
Android Enterprise dedicated devices Not supported Not supported
Android Open Source Project (AOSP) corporate-owned userless devices Not supported Not supported
Android Open Source Project (AOSP) corporate-owned user-associated devices Not supported Not supported

Learn how to find an Apple device serial number.
Learn how to find your Android device serial number.

Add corporate identifiers by using a .csv file

To create the list, create a two-column, comma-separated value (.csv) list without a header. Add the 14-digit IMEI or serial numbers in the left column, and the details in the right column. Only one type of ID, IMEI or serial number, can be imported in a single .csv file. Details are limited to 128 characters and are for administrative use only. Details aren't displayed on the device. The current limit is 5,000 rows per .csv file.

Upload a .csv file that has serial numbers – Create a two-column, comma-separated value (.csv) list without a header, and limit the list to 5,000 devices or 5 MB per .csv file.

This .csv file when viewed in a text editor appears as:

01234567890123,device details
02234567890123,device details

Important

Some Android and iOS/iPadOS devices have multiple IMEI numbers. Intune only reads one IMEI number per enrolled device. If you import an IMEI number but it is not the IMEI inventoried by Intune, the device is classified as a personal device instead of a corporate-owned device. If you import multiple IMEI numbers for a device, uninventoried numbers display Unknown for enrollment status.
Also note: Serial Numbers are the recommended form of identification for iOS/iPadOS devices. Android Serial numbers are not guaranteed to be unique or present. Check with your device supplier to understand if serial number is a reliable device ID. Serial numbers reported by the device to Intune might not match the displayed ID in the Android Settings/About menus on the device. Verify the type of serial number reported by the device manufacturer. Attempting to upload a file with serial numbers containing dots (.) will cause the upload to fail. Serial numbers with dots are not supported.

Upload a .csv list of corporate identifiers

  1. Sign in to the Microsoft Intune admin center.
  2. Go to Devices > Enrollment.
  3. Select the Corporate device identifiers tab.
  4. Choose Add > Upload CSV file.
  5. In Add identifiers, specify the identifier type: IMEI or Serial.
  6. Select the folder icon and specify the path to the list you want to import.
  7. Go to the .csv file, and then select Add.
  8. The Review duplicate identifiers pop-up window appears if the CSV file contains corporate identifiers that are already in Intune, but have different details. Select the identifiers that you want to overwrite into Intune and choose Ok to add the identifiers. Intune only compares the first duplicate of each identifier.

Manually enter corporate identifiers

  1. In the Microsoft Intune admin center, go to Devices > Enrollment.
  2. Select the Corporate device identifiers tab.
  3. Choose Add > Enter manually.
  4. In Add identifiers, specify the identifier type: IMEI or Serial.
  5. Enter the Identifier and Details for each identifier you want to add. When you're done entering identifiers, select Add.
  6. The Review duplicate identifiers pop-up window appears if your entries contain corporate identifiers that are already in Intune, but have different details. Select the identifiers that you want to overwrite into Intune and choose Ok to add the identifiers. Intune only compares the first duplicate of each identifier.

Select Refresh to reload your list. The corporate identifiers you added should now be visible.

Imported devices are not necessarily enrolled. Devices can have a state of either Enrolled or Not contacted. Not contacted means that the device has never communicated in with the Intune service.

Delete corporate identifiers

  1. In the admin center, go to Devices > Enrollment.
  2. Select the Corporate device identifiers tab.
  3. Select the device identifiers you want to delete, and choose Delete.
  4. Confirm the deletion.

Deleting a corporate identifier for an enrolled device does not change the device's ownership.

IMEI specifications

For detailed specifications about International Mobile Equipment Identifiers, see 3GGPP TS 23.003.

Change device ownership

Devices properties display Ownership for each device record in Intune. As an admin, you can specify devices as personal or corporate.

  1. Go to Devices > All devices.

  2. Select a device.

  3. Choose Properties.

  4. For Device ownership, select Personal or Corporate.

    Screenshot of the Managed device properties showing Device category and Device ownership options.

When a device's ownership type is changed from corporate to personal, Intune deletes all app information previously collected from that device within seven days. If applicable, Intune will also delete the phone number on record. Intune will still collect an inventory of apps installed by the IT admin on the device and will still collect a partial phone number for the device after it is marked as personal.

When an iOS/iPad or Android device's ownership type is changed from Personal to Corporate, a push notification is sent through the Company Portal app to inform the devices user of this change.To configure push notifications, go to Tenant administration > Customization. For more information, see Company Portal - Configuration.