report to
1) police
2) telco company
3) the handphone company i.e. Nokia, Samsung, Siemens, Sony
Ericsson, etc.
Remember to give the IMEI number of your phone to them. Chances not
high to get back but at least if they lost your phone or trade-in
or service the phone, these people can track and get back to
you.
So people who are getting secondhand phones, please remember to get
phones that come with boxes to ensure they are not lost or stolen
goods. You should also check that the IMEI number on both the phone
and box match.