From the right edge of the screen, swipe left to display the charms menu.
If using a mouse, move the pointer to the upper or lower-right corner of the Start screen then move up/down.
Alternatively, press the Windows+C keys ( +C) located on the physical keyboard (if available).
Tap or click Settings.
Tap or click Change PC settings (located in the lower-right).
From the left-pane, tap or click Network.
If not available, tap or click the left arrow icon (located in the upper-left) as necessary until "PC settings" appears in the upper-left.
Ensure that "Connections" is selected from the left-pane then tap or click Verizon Wireless from the "Mobile broadband" section.
From the "Properties" section, view the Mobile number.
The available options may vary.