Area Code 617-297 located in DORCHESTER, SUFFOLK, MA, more detail is as below. Place NPA (Numbering Plan Area) : 617 NXX (Local Number Prefix) : 297 City : DORCHESTER County : SUFFOLK State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 1998-01-25 FIPS (Federal Information Processing Standards) : 25025 LATA (Local Access Transport Area) : 128 Rate Center : DORCHESTER ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 02121 Other Information NPANXX : 617297 Switch CLLI (Common Language Location Identifier) : BSTNMACODS6 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 : GLOBAL CROSSING LOCAL SERVICES, INC.-MA OCN (Operating Company Number) : 8345 Coverage Area Name : DORCHESTER Latitude : 42.3568 Longitude : -71.0588 ‹ previous : 617-297 next › : 617-298 Telephone Number List 617-297-0000 ~ 617-297-9999