Area Code 508-684 located in VINEYARD HAVEN, DUKES, MA, more detail is as below. Place NPA (Numbering Plan Area) : 508 NXX (Local Number Prefix) : 684 City : VINEYARD HAVEN County : DUKES State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 25007 LATA (Local Access Transport Area) : 128 Rate Center : VINEYRDHVN ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 02568 Other Information NPANXX : 508684 Switch CLLI (Common Language Location Identifier) : WRCSMA05DS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC OCN (Operating Company Number) : 4052 Coverage Area Name : VINEYARD HAVEN Latitude : 41.4507 Longitude : -70.6051 ‹ previous : 508-683 next › : 508-685 Telephone Number List 508-684-0000 ~ 508-684-9999