Area Code 617-671 located in BOSTON, SUFFOLK, MA, more detail is as below. Place NPA (Numbering Plan Area) : 617 NXX (Local Number Prefix) : 671 City : BOSTON County : SUFFOLK State : MA (Massachusetts) NXX Use Type : Wireless NXX Intro Version : 2005-03-27 FIPS (Federal Information Processing Standards) : 25025 LATA (Local Access Transport Area) : 128 Rate Center : BOSTON ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 02222 Other Information NPANXX : 617671 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 : BOSTON Latitude : 42.3648 Longitude : -71.0819 ‹ previous : 617-670 next › : 617-671 Telephone Number List 617-671-0000 ~ 617-671-9999