Area Code 508-931 located in BOSTON, SUFFOLK, MA, more detail is as below. Place NPA (Numbering Plan Area) : 508 NXX (Local Number Prefix) : 931 City : BOSTON County : SUFFOLK State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 2006-02-16 FIPS (Federal Information Processing Standards) : 25025 LATA (Local Access Transport Area) : 128 ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 02133 Other Information NPANXX : 508931 Switch CLLI (Common Language Location Identifier) : CMBRMABE01T 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 Coverage Area Name : BOSTON Latitude : 42.3568 Longitude : -71.0588 ‹ previous : 508-931 next › : 508-932 Telephone Number List 508-931-0000 ~ 508-931-9999