Area Code 413-639 located in WESTFIELD, HAMPDEN, MA, more detail is as below. Place NPA (Numbering Plan Area) : 413 NXX (Local Number Prefix) : 639 City : WESTFIELD County : HAMPDEN State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 2000-10-31 FIPS (Federal Information Processing Standards) : 25013 LATA (Local Access Transport Area) : 126 Rate Center : WESTFIELD ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 01085 Other Information NPANXX : 413639 Switch CLLI (Common Language Location Identifier) : SPFDMAXLDS1 MSA CBSA (Core Based Statistical Area) : Springfield, MA MSA CBSA Code (Core Based Statistical Area) : 44140 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : CHOICE ONE COMMUNICATIONS - MA OCN (Operating Company Number) : 4673 Coverage Area Name : WESTFIELD Latitude : 42.1209 Longitude : -72.7493 ‹ previous : 413-638 next › : 413-641 Telephone Number List 413-639-0000 ~ 413-639-9999