How to disable a STOLEN mobile phone

I found this info on this website: www.michaelliew.com/4-things-you-probably-never-knew-your-mobile-phone-could-do/
there is some more good cell phone info there.

To check your Mobile phone’s serial number, key in the following digits on your phone: *#06#

A 15 digit code will appear on the screen. This number is unique to your handset. Write it down and keep it somewhere safe. When your phone get stolen, you can phone your service provider and give them this code.

They will then be able to block your handset so even if the thief changes the SIM card, your phone will be totally useless. You probably won’t get your phone back, but at least you know that whoever stole it can’t use/sell it either. If everybody does this, there would be no point in people stealing mobile phones.

This is the kind of information people don’t mind receiving, so pass it on to your family and friends.