Area Code 978-393 located in BOXBOROUGH, MIDDLESEX, MA, more detail is as below. Place NPA (Numbering Plan Area) : 978 NXX (Local Number Prefix) : 393 City : BOXBOROUGH County : MIDDLESEX State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 2001-03-03 FIPS (Federal Information Processing Standards) : 25017 LATA (Local Access Transport Area) : 128 Rate Center : ACTON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 01719 Other Information NPANXX : 978393 Switch CLLI (Common Language Location Identifier) : BDFRMAAWDS0 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 : RNK, INC. OCN (Operating Company Number) : 8700 Coverage Area Name : ACTON Latitude : 42.4746 Longitude : -71.4537 ‹ previous : 978-393 next › : 978-394 Telephone Number List 978-393-0000 ~ 978-393-9999