Area Code 978-637 located in FRAMINGHAM, MIDDLESEX, MA, more detail is as below. Place NPA (Numbering Plan Area) : 978 NXX (Local Number Prefix) : 637 City : FRAMINGHAM County : MIDDLESEX State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 2000-01-14 FIPS (Federal Information Processing Standards) : 25017 LATA (Local Access Transport Area) : 128 Rate Center : MAYNARD ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 01701 Other Information NPANXX : 978637 Switch CLLI (Common Language Location Identifier) : FRMNWAWADS3 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 : AT&T LOCAL OCN (Operating Company Number) : 7421 Coverage Area Name : FRAMINGHAM Latitude : 42.2729 Longitude : -71.4393 ‹ previous : 978-636 next › : 978-638 Telephone Number List 978-637-0000 ~ 978-637-9999