Area Code 219-440 located in DYER, LAKE, IN, more detail is as below. Place NPA (Numbering Plan Area) : 219 NXX (Local Number Prefix) : 440 City : DYER County : LAKE State : IN (Indiana) NXX Use Type : Landline NXX Intro Version : 2/9/2006 FIPS (Federal Information Processing Standards) : 18089 LATA (Local Access Transport Area) : 358 Rate Center : DYER ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 46311 Other Information NPANXX : 219440 County Population : 0 Switch CLLI (Common Language Location Identifier) : CHCGILNEDSZ 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 : LEVEL 3 COMMUNICATIONS, LLC - IN OCN (Operating Company Number) : 4803 Coverage Area Name : DYER Latitude : 41.4956 Longitude : -87.5171 ‹ previous : 219-433 next › : 219-448 Telephone Number List 219-440-0000 ~ 219-440-9999