IMEI number is the “International Mobile Station Equipment Identity”.
It is a unique identification number assigned to all mobile devices irrespective of their brand and model.
No two cellular devices in the world have the same IMEI. They are something like our fingerprints, vehicle chassis number etc. An IMEI consists of random 15 numerical digits.
To find the make, model and IMEI number of a phone via your my.plan account log in.
CARDS > USER NAME LABEL > DEVICE INFORMATION.