Surface Duo 2 The model number identifies the type of device you have. You may be asked for the model number of your Surface Duo if you contact Microsoft Support. The IMEI (International Mobile Equipment Identity) number is a unique 15-digit code on your Surface Duo....
Windows Phone 8.1 has added a CSP to allow a GET request for the device’s International Mobile Equipment Identity (IMEI), a unique identifier for a mobile device. Inventory collection of mobile device IMEIs is not enabled by default, however it is possible to ...