Area Code 315-599 located in WILLIAMSTOWN, OSWEGO, NY, more detail is as below. Place NPA (Numbering Plan Area) : 315 NXX (Local Number Prefix) : 599 City : WILLIAMSTOWN County : OSWEGO State : NY (New York) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 36075 LATA (Local Access Transport Area) : 136 Rate Center : OSCEOLA ZIP Code Count : 38 ZIP Code Frequency : 12 ZIP Code : 13493 Other Information NPANXX : 315599 County Population : 0 Switch CLLI (Common Language Location Identifier) : CMDNNYZMRS0 MSA CBSA (Core Based Statistical Area) : Syracuse, NY MSA CBSA Code (Core Based Statistical Area) : 45060 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : VERIZON NEW YORK, INC. OCN (Operating Company Number) : 9104 Coverage Area Name : OSCEOLA Latitude : 43.3391 Longitude : -75.7505 ‹ previous : 315-599 next › : 315-599 Telephone Number List 315-599-0000 ~ 315-599-9999