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Area codes 609 and 640 - Wikipedia
609 Area Code - National Phone Number Registry
640 Area Code - National Phone Number Registry
609 Area Code - Location, Time, Map, Cities and Census Data - ZIP-Codes.com
Area codes locator - Area code lookup by number or city
609 Area Code - Map, Phone Lookup, Time Zone | Wirefly
With area code 640, 609 no longer rules southern Jersey Shore
Area Code 609 - Details, official location, official service date ...
640 Area Code - Location, Time, Map, Cities and Census Data - ZIP-Codes.com
609 and 856 area codes: Here comes 640 and dialing changes
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