To find the IMEI/IMEID of your phone, you can check one of the following:
1. Proof of purchase
2. Giftbox label
3. SIM card tray
4. From the top of your screen, slide your finger downward to open the Notifications panel. Then tap Settings > About phone > Phone identity.
5. 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.
6. On the phone keypad, enter *#06#. You will then see the phone's IMEI.
NOTE: IMEI (International Mobile Equipment Identity) is the number that's used to identify GSM phones. MEID (Mobile Equipment Identifier) is the number that's used to identify CDMA phones.