The United States map as represented by counties that text and called each other more often:

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The call map reveals some interesting connections based on phone calling patterns. Some states merge like Kentucky and Tennessee or North and South Carolina. California splits into a northern and southern region. Illinois drops the southern half of the state and merges with eastern Wisconsin.

Next, looking at a map based on SMS (text messaging) patterns shows several variations to the call map.

click for a larger version

First off, notice how California, based on SMS patterns, is now split into three regions and the Georgia / Alabama alignment based on phone calls has split based on SMS patterns.

Interesting stuff….