Overlay Plan

In telephony, especially in North America, an overlay plan is the practice of introducing a new area code by applying it onto a geographic area that is already occupied by one or more existing area codes, resulting in two (or more) area codes serving the same area.

Read more about Overlay Plan:  Methodology, Types of Overlays, Number Pool Management

Famous quotes containing the word plan:

    I deplore my shortcomings, but plan to keep them.
    Mason Cooley (b. 1927)