To find the IMEI follow these instructions. Step one: make sure you are on a device (laptop, computer, phone) that is connected to YOUR spark network. Step two: Open an internet browser of your choice (chrome, edge, firefox) any browser will work for this. Step three: In the top url bar enter in the following Ip address: (192.168.10.1) without the parentheses. This should bring up a blue welcome screen to log into the modem. The password the access the modem is one of 3 passwords: Admin1@3, Admin123, or admin123. Step four: Once you are logged into the modem and are on the home page head down one tab into the "Network" tab. Once you are on the network tab you will be automatically put into the "WAN" page. You are going to want to head one tab to the right labeled "3G/4G". Last step: In the middle of the 3G/4G page it should say 3G/4G signal: The second from far right tab should be labelled as IMEI.