Area Code 857-207 located in BOSTON, SUFFOLK, MA, more detail is as below. Place NPA (Numbering Plan Area) : 857 NXX (Local Number Prefix) : 207 City : BOSTON County : SUFFOLK State : MA (Massachusetts) NXX Use Type : Wireless NXX Intro Version : 4/11/2007 FIPS (Federal Information Processing Standards) : 25025 LATA (Local Access Transport Area) : 128 Rate Center : BOSTON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 02110 Other Information NPANXX : 857207 Switch CLLI (Common Language Location Identifier) : WRXBMAWACM2 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 Overlay : L Company : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA OCN (Operating Company Number) : 6387 Coverage Area Name : BOSTON Latitude : 42.3568 Longitude : -71.0588 ‹ previous : 857-206 next › : 857-208 Telephone Number List 857-207-0000 ~ 857-207-9999