Area Code 315-300 located in CHAUMONT, JEFFERSON, NY, more detail is as below. Place NPA (Numbering Plan Area) : 315 NXX (Local Number Prefix) : 300 City : CHAUMONT County : JEFFERSON State : NY (New York) NXX Use Type : Landline FIPS (Federal Information Processing Standards) : 36045 LATA (Local Access Transport Area) : 136 Rate Center : CHAUMONT ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 13622 Other Information NPANXX : 315300 County Population : 0 Switch CLLI (Common Language Location Identifier) : SYRCNYSUXFY 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 : TIME WARNER CABLE INFO SVCE (NEW YORK) LLC-NY OCN (Operating Company Number) : 532D Coverage Area Name : CHAUMONT Latitude : 44.0684 Longitude : -76.1278 ‹ previous : 315-299 next › : 315-301 Telephone Number List 315-300-0000 ~ 315-300-9999