Area Code 617-466 located in CHELSEA, SUFFOLK, MA, more detail is as below. Place NPA (Numbering Plan Area) : 617 NXX (Local Number Prefix) : 466 City : CHELSEA County : SUFFOLK State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 25025 LATA (Local Access Transport Area) : 128 Rate Center : CHELSEA ZIP Code Count : 120 ZIP Code Frequency : 100 ZIP Code : 02150 Other Information NPANXX : 617466 Switch CLLI (Common Language Location Identifier) : NDHMMAEFDS0 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 : COMCAST PHONE OF MASSACHUSETTS, INC. - MA OCN (Operating Company Number) : 6101 Coverage Area Name : NEEDHAM Latitude : 42.3025 Longitude : -71.2232 ‹ previous : 617-465 next › : 617-467 Telephone Number List 617-466-0000 ~ 617-466-9999