View the SIM Card Number - Pantech UML290 4G USB Modem
From the Windows desktop, locate then double-click the VZAccess Manager icon.
Alternatively, click Start > Programs (All Programs) > VZAccess Manager.
With Windows 10, click Start > Apps icon (located in the top-left corner) > All apps (located in the bottom-left corner) > VZAccess Manager.
If presented, enter the PIN then click OK.
The default PIN is 1111.
From the top menu, click Help > WWAN Device Info.
View the ICCID (SIM ID).
Scroll up/down to view additional information.
You can also remove the SIM card and view the 20-digit SIM card number (with the gold contacts facing away).