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The tracking method described here starts with a phone number. Several weeks ago, my daughter had her iPhone stolen, and did not have her tracking app enabled. A cell phone tower identifies the phone by a unique identifier, so I asked the service provider if they would track the phone for me, and they said no, only with a police warrant, which the police wouln't do for a small-ticket item such as this. Would it be possible to find the phone by its unique number? (was ESN with CDMA, I don't remember what its called now).