Area Code 978-359 located in TOPSFIELD, ESSEX, MA, more detail is as below. Place NPA (Numbering Plan Area) : 978 NXX (Local Number Prefix) : 359 City : TOPSFIELD County : ESSEX State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 1998-08-14 FIPS (Federal Information Processing Standards) : 25009 LATA (Local Access Transport Area) : 128 Rate Center : TOPSFIELD ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 01983 Other Information NPANXX : 978359 Switch CLLI (Common Language Location Identifier) : QNCYMACE4MD 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 : GLOBAL NAPS, INC.-MA OCN (Operating Company Number) : 7755 Coverage Area Name : TOPSFIELD Latitude : 42.6385 Longitude : -70.9509 ‹ previous : 978-358 next › : 978-360 Telephone Number List 978-359-0000 ~ 978-359-9999