Area Code 219-743 located in SAINT JOHN, LAKE, IN, more detail is as below. Place NPA (Numbering Plan Area) : 219 NXX (Local Number Prefix) : 743 City : SAINT JOHN County : LAKE State : IN (Indiana) NXX Use Type : Wireless NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 18089 LATA (Local Access Transport Area) : 358 Rate Center : GARY ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 46373 Other Information NPANXX : 219743 County Population : 0 Switch CLLI (Common Language Location Identifier) : GARYINGO6MD MSA CBSA (Core Based Statistical Area) : Chicago-Naperville-Joliet, IL-IN-WI MSA CBSA Code (Core Based Statistical Area) : 16980 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN OCN (Operating Company Number) : 6725 Coverage Area Name : GARY Latitude : 41.5933 Longitude : -87.3436 ‹ previous : 219-743 next › : 219-746 Telephone Number List 219-743-0000 ~ 219-743-9999