Area Code 219-718 located in SAINT JOHN, LAKE, IN, more detail is as below. Place NPA (Numbering Plan Area) : 219 NXX (Local Number Prefix) : 718 City : SAINT JOHN County : LAKE State : IN (Indiana) NXX Use Type : Landline NXX Intro Version : 1997-01-11 FIPS (Federal Information Processing Standards) : 18089 LATA (Local Access Transport Area) : 358 Rate Center : MERRILLVL ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 46373 Other Information NPANXX : 219718 County Population : 0 Switch CLLI (Common Language Location Identifier) : CRPNINACCM1 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 : NEW CINGULAR WIRELESS PCS, LLC - IL OCN (Operating Company Number) : 6534 Coverage Area Name : MERRILLVILLE Latitude : 41.4858 Longitude : -87.3370 ‹ previous : 219-717 next › : 219-728 Telephone Number List 219-718-0000 ~ 219-718-9999