Area Code 508-439 located in WESTBOROUGH, WORCESTER, MA, more detail is as below. Place NPA (Numbering Plan Area) : 508 NXX (Local Number Prefix) : 439 City : WESTBOROUGH County : WORCESTER State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 1998-01-25 FIPS (Federal Information Processing Standards) : 25027 LATA (Local Access Transport Area) : 128 Rate Center : WESTBORO ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 01581 Other Information NPANXX : 508439 Switch CLLI (Common Language Location Identifier) : SBTNMAFHDSG 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 : RCN TELECOM SERVICES, INC. - MA OCN (Operating Company Number) : 7619 Coverage Area Name : WESTBORO Latitude : 42.2716 Longitude : -71.6143 ‹ previous : 508-438 next › : 508-440 Telephone Number List 508-439-0000 ~ 508-439-9999