Area Code 631-275 located in BRENTWOOD, SUFFOLK, NY, more detail is as below. Place NPA (Numbering Plan Area) : 631 NXX (Local Number Prefix) : 275 City : BRENTWOOD County : SUFFOLK State : NY (New York) NXX Use Type : Wireless NXX Intro Version : 2003-11-11 FIPS (Federal Information Processing Standards) : 36103 LATA (Local Access Transport Area) : 132 Rate Center : BRENTWOOD ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 11717 Other Information NPANXX : 631275 Switch CLLI (Common Language Location Identifier) : WBYNNYAKCM4 MSA CBSA (Core Based Statistical Area) : New York-Northern New Jersey-Long Island, NY-NJ-PA MSA CBSA Code (Core Based Statistical Area) : 35620 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : SPRINT SPECTRUM L.P. OCN (Operating Company Number) : 6664 Coverage Area Name : BRENTWOOD Latitude : 40.7763 Longitude : -73.2457 ‹ previous : 631-274 next › : 631-276 Telephone Number List 631-275-0000 ~ 631-275-9999