On the Device Status Summary page, click and select the row for the device that you want to move and click the edit icon (on the right corner)
On the Update Device page, select Move This Device To Another Organization.
Select the Destination Organization for the device, enter the Device Name in New Organization, and then click Next. (The destination organization must be associated with the same user-class as the original organization.)
If you are certain that you want to move the device, click Move in the Move Device page.
All of the data and provisioning information for the device are moved to the destination organization.