Area code 203 is the North American telephone area code that covers the southwestern part of Connecticut. The area code stretches from its western border, along its southern coast, to beyond the city of New Haven, and ends just south of Hartford. (The rest of Connecticut is served by the 860 area code.) It overlays with area code 475. The area encompassed by 203 roughly corresponds to the part of Connecticut belonging to metro NYC, the Tri-state ...
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Area code 203 is the North American telephone area code that covers the southwestern part of Connecticut. The area code stretches from its western border, along its southern coast, to beyond the city of New Haven, and ends just south of Hartford. (The rest of Connecticut is served by the 860 area code.) It overlays with area code 475. The area encompassed by 203 roughly corresponds to the part of Connecticut belonging to metro NYC, the Tri-state region.
The boundary with area code 860 runs along (from East to West and then heading South starting with the City of Meriden) these 15 towns (excluding Roxbury): New Fairfield, Brookfield, Newtown, Southbury, Woodbury, a small part of eastern Roxbury; Bethlehem, Middlebury, Waterbury, Wolcott, Cheshire, Meriden, Wallingford, North Branford, Guilford, and Madison; all of which are in 203 and border at least one and at most four towns (Meriden) in 860. Brookfield, Southbury, Woodbury, and Wallingford all border two towns; Bethlehem, Waterbury,...
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