Area Code 508-310 located in WELLESLEY, NORFOLK, MA, more detail is as below. Place NPA (Numbering Plan Area) : 508 NXX (Local Number Prefix) : 310 City : WELLESLEY County : NORFOLK State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 1999-10-13 FIPS (Federal Information Processing Standards) : 25021 LATA (Local Access Transport Area) : 128 Rate Center : NATICK ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 02482 Other Information NPANXX : 508310 Switch CLLI (Common Language Location Identifier) : BSTNMALBDS0 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 : ALLEGIANCE TELECOM, INC. - MA OCN (Operating Company Number) : 6168 Coverage Area Name : NATICK Latitude : 42.2839 Longitude : -71.3395 ‹ previous : 508-309 next › : 508-310 Telephone Number List 508-310-0000 ~ 508-310-9999