Area Code 617-201 located in BOSTON, SUFFOLK, MA, more detail is as below. Place NPA (Numbering Plan Area) : 617 NXX (Local Number Prefix) : 201 City : BOSTON County : SUFFOLK State : MA (Massachusetts) NXX Use Type : Wireless NXX Intro Version : 2001-06-30 FIPS (Federal Information Processing Standards) : 25025 LATA (Local Access Transport Area) : 128 Rate Center : CAMBRIDGE ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 02163 Other Information NPANXX : 617201 Switch CLLI (Common Language Location Identifier) : BSTOMARI6MD 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 : SPRINT SPECTRUM L.P. OCN (Operating Company Number) : 6664 Coverage Area Name : CAMBRIDGE Latitude : 42.3720 Longitude : -71.1137 ‹ previous : 616-997 next › : 617-201 Telephone Number List 617-201-0000 ~ 617-201-9999