Know your mobile phone

It is often the case with us that somebody asks us our mobile model, and we don't remember it. Don't worry about what to say when somebody asks, just dialing this number can give you the phone model (works with NOKIA mobiles):

*#0000#

What if, you loose your mobile somewhere and you don't want anybody to use it, you can do that by giving your mobile Serial Number to the service provider. To know your mobile Serial Number (technically called IMEI number), just dial the following number:

*#06#

This will display a 15-17 digit number which is unique to that device, note that and keep it safe and use it when needed (hope you will never need to use it). IMEI is expanded as International Mobile Equipment Identity

What is a SIM card...?
SIM stands for Subscriber Identity Module, the SIM cards store a unique International Mobile Subscriber Identity (IMSI) also called Service Subscriber Key, used to identify a subscriber. The serial number of a SIM card can be found on the SIM.
(Most of the information here applies to GSM services.)