How can i track my lost phone with my imei number?

Hmm, unless you had an app installed that would be able to track it, the only possible way I know would be to call the service provider you have and see if they can track it. In the future, if you find your device, or purchase another, install the app "Lookout Mobile Security ", available on the App Market or Google Play now. Not only does it provide virus protection but also has a phone location service which works through GPS data, and will locate the lost device within a few meters! I have checked it out and it does work!! Also the best part is, it's free! !! Check it out, its worth having.