The backbone networks of the Internet are typically owned by long-distance telephone companies called

network service providers

Explanation:

The backbone networks of the Internet are typically owned by long-distance telephone companies called network service providers.

A network service provider can be defined as a business firm or company that is saddled with the responsibility of leasing or selling bandwidth, internet services, infrastructure such as cable lines to small internet service providers.

go to the floppy disc icon and click it

explanation: