Area Code 508-318 located in BOSTON, SUFFOLK, MA, more detail is as below. Place NPA (Numbering Plan Area) : 508 NXX (Local Number Prefix) : 318 City : BOSTON County : SUFFOLK State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 25025 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 : 02133 Other Information NPANXX : 508318 Switch CLLI (Common Language Location Identifier) : CMBRMAMQDS0 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 : XO MASSACHUSETTS, INC. OCN (Operating Company Number) : 4536 Coverage Area Name : CAMBRIDGE Latitude : 42.3676 Longitude : -71.0867 ‹ previous : 508-317 next › : 508-318 Telephone Number List 508-318-0000 ~ 508-318-9999