Area Code 620 was the result of a split from 316 on February 3 2001. It covers most telephone exchanges in southern Kansas. It stretches from the Colorado state line on the west to the Missouri state line on the east, while excluding the Wichita Metropolitan Area (316). The permissive dialing period for 620 ended on November 3 2001. The largest cities covered by the area code are Dodge City, Garden City and Hutchinson.
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