Area Code 219-678 located in GARY, LAKE, IN, more detail is as below. Place NPA (Numbering Plan Area) : 219 NXX (Local Number Prefix) : 678 City : GARY County : LAKE State : IN (Indiana) NXX Use Type : Wireless NXX Intro Version : 1996-10-15 FIPS (Federal Information Processing Standards) : 18089 LATA (Local Access Transport Area) : 358 Rate Center : GARY ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 46404 Other Information NPANXX : 219678 County Population : 0 Switch CLLI (Common Language Location Identifier) : SCBGILZCCM0 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 : UNITED STATES CELLULAR CORP. - INDIANA OCN (Operating Company Number) : 6277 Coverage Area Name : GARY Latitude : 41.5933 Longitude : -87.3436 ‹ previous : 219-677 next › : 219-678 Telephone Number List 219-678-0000 ~ 219-678-9999