Area Code 315-384 located in WINTHROP, SAINT LAWRENCE, NY, more detail is as below. Place NPA (Numbering Plan Area) : 315 NXX (Local Number Prefix) : 384 City : WINTHROP County : SAINT LAWRENCE State : NY (New York) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 36089 LATA (Local Access Transport Area) : 136 Rate Center : NORFOLK ZIP Code Count : 20 ZIP Code Frequency : 2 ZIP Code : 13697 Other Information NPANXX : 315384 County Population : 0 Switch CLLI (Common Language Location Identifier) : NRFLNYNORS0 MSA CBSA (Core Based Statistical Area) : Ogdensburg-Massena, NY MSA CBSA Code (Core Based Statistical Area) : 36300 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : VERIZON NEW YORK, INC. OCN (Operating Company Number) : 9104 Coverage Area Name : NORFOLK Latitude : 44.7987 Longitude : -74.9930 ‹ previous : 315-384 next › : 315-384 Telephone Number List 315-384-0000 ~ 315-384-9999