How do I locate Apple device using serial number?

ashikur259 wrote:

I have IMEI NUMBER

Nope.

Having the IMEI or serial number is not useful for locating an Apple device.

Locating a device via IMEI or serial number would be (is) a security and privacy catastrophe.

Your carrier can locate via IMEI, though they may require legal paperwork first.

Serial number or IMEI cannot be used to locate an iPhone.

How to find your lost iPhone or iPad - Apple Support

ashikur259 wrote:

I have IMEI NUMBER

Carriers (phone companies) typically will refuse to locate a phone by IMEI if the phone is merely lost or stolen.

They might track by IMEI in, say, a missing person case where the police present them with a court order.

What part of Bob's response did you not understand?