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to Dubliners,
:"Fred Murphy, 1 Main Street, Dublin" to people in Ireland,
:"Fred Murphy, 1 Main Street, Dublin, Ireland" to people anywhere in the world.
:
:On the Internet, addresses are known as IP addresses (Internet Protocol).
:; Message forwarding
:Since many networks are partitioned into subnetworks and connect to other networks for wide-area communications, networks use specialized hosts, called gateways or routers,

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