There are many different numbering schemes for assigning numbers to entities. These generally require an agreed set of rules, or a central coordinator.
Numbering schemes include:
The E.164 numbering plan for telephone numbers, including:
... area is covered with water.
Demographics
As of the census of 2000, there are 19,701 people, 6,700 households, and 5,011 families residing in the town. The populatio ...