Currently Being ModeratedNov 28, 2012 10:02 AM (in response to nataliestamos)
Not unless the cell company keeps the serial number of the phone in their database. Otherwise the serial number and phone number are not linked in any way.
Currently Being ModeratedNov 28, 2012 10:13 AM (in response to nataliestamos)
The iPhone 3GS current phone number is on the SIM Chip that is installed in the iPhone in the SIM Tray. The iPhone can display this number for you. Tap Phone icon, then at bottom, tap Contacts, it is the number listed at the very top. If you change and insert a different SIM Card into the iPhone then you will see the number, that this SIM Card has.