Verizon supports the Microsoft Surface 3 on Windows 8.1 Pro OS. Contact Microsoft Support to assist with any Windows 10 Pro OS How to and troubleshooting questions.
View via Device
View via SIM Card
View via Device (Alternate Method)
If the Verizon Connection Manager app has been uninstalled, an alternate method to view the SIM card number is available. The app can also be reinstalled via the Windows Store.