Area Code 617-510 located in FITCHBURG, WORCESTER, MA, more detail is as below. Place NPA (Numbering Plan Area) : 617 NXX (Local Number Prefix) : 510 City : FITCHBURG County : WORCESTER State : MA (Massachusetts) NXX Use Type : Wireless NXX Intro Version : 1996-10-15 FIPS (Federal Information Processing Standards) : 25027 LATA (Local Access Transport Area) : 128 Rate Center : BOSTON ZIP Code Count : 1 ZIP Code Frequency : 20 ZIP Code : 01420 Other Information NPANXX : 617510 Switch CLLI (Common Language Location Identifier) : CMBSMA47CM0 MSA CBSA (Core Based Statistical Area) : Worcester, MA MSA CBSA Code (Core Based Statistical Area) : 49340 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - DC OCN (Operating Company Number) : 4036 Coverage Area Name : BOSTON Latitude : 42.3568 Longitude : -71.0588 ‹ previous : 617-510 next › : 617-512 Telephone Number List 617-510-0000 ~ 617-510-9999