Area Code 315-775 located in BLACK RIVER, JEFFERSON, NY, more detail is as below. Place NPA (Numbering Plan Area) : 315 NXX (Local Number Prefix) : 775 City : BLACK RIVER County : JEFFERSON State : NY (New York) NXX Use Type : Landline NXX Intro Version : 1997-01-11 FIPS (Federal Information Processing Standards) : 36045 LATA (Local Access Transport Area) : 136 Rate Center : WATERTOWN ZIP Code Count : 213 ZIP Code Frequency : 14 ZIP Code : 13612 Other Information NPANXX : 315775 County Population : 0 Switch CLLI (Common Language Location Identifier) : BLRVNYBCDS0 MSA CBSA (Core Based Statistical Area) : Watertown-Fort Drum, NY MSA CBSA Code (Core Based Statistical Area) : 48060 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : VERIZON NEW YORK, INC. OCN (Operating Company Number) : 9104 Coverage Area Name : WATERTOWN Latitude : 44.0122 Longitude : -75.7918 ‹ previous : 315-774 next › : 315-775 Telephone Number List 315-775-0000 ~ 315-775-9999