Area Code 219-237 located in HIGHLAND, LAKE, IN, more detail is as below. Place NPA (Numbering Plan Area) : 219 NXX (Local Number Prefix) : 237 City : HIGHLAND County : LAKE State : IN (Indiana) NXX Use Type : Landline NXX Intro Version : 6/10/2011 FIPS (Federal Information Processing Standards) : 18089 LATA (Local Access Transport Area) : 358 Rate Center : HIGHLAND ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 46322 Other Information NPANXX : 219237 County Population : 0 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 : PEERLESS NETWORK OF INDIANA, LLC - IN OCN (Operating Company Number) : 279F Coverage Area Name : HIGHLAND Latitude : 41.5543 Longitude : -87.4547 ‹ previous : 219-236 next › : 219-238 Telephone Number List 219-237-0000 ~ 219-237-9999