Area Code 508-357 located in SOUTHBOROUGH, WORCESTER, MA, more detail is as below. Place NPA (Numbering Plan Area) : 508 NXX (Local Number Prefix) : 357 City : SOUTHBOROUGH County : WORCESTER State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 25027 LATA (Local Access Transport Area) : 128 Rate Center : MARLBORO ZIP Code Count : 30 ZIP Code Frequency : 15 ZIP Code : 01772 Other Information NPANXX : 508357 Switch CLLI (Common Language Location Identifier) : MRBOMAMADS0 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 : MARLBORO Latitude : 42.3452 Longitude : -71.5411 ‹ previous : 508-356 next › : 508-357 Telephone Number List 508-357-0000 ~ 508-357-9999