Area Code 978-314 located in CHELMSFORD, MIDDLESEX, MA, more detail is as below. Place NPA (Numbering Plan Area) : 978 NXX (Local Number Prefix) : 314 City : CHELMSFORD County : MIDDLESEX State : MA (Massachusetts) NXX Use Type : Wireless NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 25017 LATA (Local Access Transport Area) : 128 Rate Center : LAWRENCE ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 01824 Other Information NPANXX : 978314 Switch CLLI (Common Language Location Identifier) : BLRCMAGFCM1 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 : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA OCN (Operating Company Number) : 6387 Coverage Area Name : LAWRENCE Latitude : 42.7065 Longitude : -71.1639 ‹ previous : 978-314 next › : 978-315 Telephone Number List 978-314-0000 ~ 978-314-9999