15 digit number after pressing *#06# is called IMEI and has some information but has nothing to do with the quality or the originality.

please check this site http://www.numberingplans.com/
for your mobile

or http://en.wikipedia.org/wiki/IMEI

for more details please check this website
http://free-smartphone-software.blogspot.com/2008/11/06-is-code-to-check...