Area Code 617-581 located in NAHANT, ESSEX, MA, more detail is as below. Place NPA (Numbering Plan Area) : 617 NXX (Local Number Prefix) : 581 City : NAHANT County : ESSEX State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 25009 LATA (Local Access Transport Area) : 128 Rate Center : NEWTON ZIP Code Count : 1 ZIP Code Frequency : 33 ZIP Code : 01908 Other Information NPANXX : 617581 Switch CLLI (Common Language Location Identifier) : WRCSMA05DS0 MSA CBSA (Core Based Statistical Area) : Boston-Cambridge-Quincy, MA-NH MSA CBSA Code (Core Based Statistical Area) : 14460 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 : NEWTON Latitude : 42.3520 Longitude : -71.2080 ‹ previous : 617-581 next › : 617-582 Telephone Number List 617-581-0000 ~ 617-581-9999