Area Code 978-994 located in HAVERHILL, ESSEX, MA, more detail is as below. Place NPA (Numbering Plan Area) : 978 NXX (Local Number Prefix) : 994 City : HAVERHILL County : ESSEX State : MA (Massachusetts) NXX Use Type : Wireless NXX Intro Version : 2002-08-04 FIPS (Federal Information Processing Standards) : 25009 LATA (Local Access Transport Area) : 128 Rate Center : HAVERHILL ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 01835 Other Information NPANXX : 978994 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 : HAVERHILL Latitude : 42.7774 Longitude : -71.0760 ‹ previous : 978-994 next › : 978-995 Telephone Number List 978-994-0000 ~ 978-994-9999