Area Code 857-201 located in WINTHROP, SUFFOLK, MA, more detail is as below. Place NPA (Numbering Plan Area) : 857 NXX (Local Number Prefix) : 201 City : WINTHROP County : SUFFOLK State : MA (Massachusetts) NXX Use Type : Wireless NXX Intro Version : 2003-02-09 FIPS (Federal Information Processing Standards) : 25025 LATA (Local Access Transport Area) : 128 Rate Center : WINTHROP ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 02152 Other Information NPANXX : 857201 Switch CLLI (Common Language Location Identifier) : WOBNMACGCM0 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 : SPRINT SPECTRUM L.P. OCN (Operating Company Number) : 6664 Coverage Area Name : WINTHROP Latitude : 42.3754 Longitude : -70.9819 ‹ previous : 857-200 next › : 857-202 Telephone Number List 857-201-0000 ~ 857-201-9999