To find the IMEI/IMEID of your phone, you can check one of the following:
1. Press and hold the top of your screen and then slide downward to open the Notifications panel. Tap Settings > About phone > Phone identity
2. On the phone keypad, dial *#06#; this will automatically display the phone's IMEI.
3. If your phone has a removable battery, remove the back cover and take the battery out. There's a sticker on the inside that shows the IMEI/MEID. If it’s non-removable battery device, check SIM tray.