Area Code 978-840 located in LANCASTER, WORCESTER, MA, more detail is as below. Place NPA (Numbering Plan Area) : 978 NXX (Local Number Prefix) : 840 City : LANCASTER 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 : LEOMINSTER ZIP Code Count : 73 ZIP Code Frequency : 3 ZIP Code : 01523 Other Information NPANXX : 978840 Switch CLLI (Common Language Location Identifier) : LMNSMASCDS1 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 : LEOMINSTER Latitude : 42.5277 Longitude : -71.7623 ‹ previous : 978-839 next › : 978-840 Telephone Number List 978-840-0000 ~ 978-840-9999