Area Code 978-456 located in STILL RIVER, WORCESTER, MA, more detail is as below. Place NPA (Numbering Plan Area) : 978 NXX (Local Number Prefix) : 456 City : STILL RIVER County : WORCESTER State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 1997-10-11 FIPS (Federal Information Processing Standards) : 25027 LATA (Local Access Transport Area) : 128 Rate Center : HARVARD ZIP Code Count : 29 ZIP Code Frequency : 2 ZIP Code : 01467 Other Information NPANXX : 978456 Switch CLLI (Common Language Location Identifier) : HRVRMALIDS0 MSA CBSA (Core Based Statistical Area) : Worcester, MA MSA CBSA Code (Core Based Statistical Area) : 49340 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : VERIZON NEW ENGLAND INC. OCN (Operating Company Number) : 9102 Coverage Area Name : HARVARD Latitude : 42.4998 Longitude : -71.5856 ‹ previous : 978-455 next › : 978-456 Telephone Number List 978-456-0000 ~ 978-456-9999