The Oligarchic Phone Companies already have a system like this in place, to lookup names based on phone numbers, and it's based on DNS. On the downside, each O

The Oligarchic Phone Companies already have a system like this in place, to lookup names based on phone numbers, and it's based on DNS. On the downside, each Oligarchic Phone company charges for each lookup (everything on the Oligarchic Phone Company costs money).