Area Code 219-230 located in HAMMOND, LAKE, IN, more detail is as below. Place NPA (Numbering Plan Area) : 219 NXX (Local Number Prefix) : 230 City : HAMMOND County : LAKE State : IN (Indiana) NXX Use Type : Landline NXX Intro Version : 2002-08-04 FIPS (Federal Information Processing Standards) : 18089 LATA (Local Access Transport Area) : 358 Rate Center : HAMMOND ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 46327 Other Information NPANXX : 219230 County Population : 0 Switch CLLI (Common Language Location Identifier) : CHCGIL24DS3 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 : GLOBALCOM, INC.-IL OCN (Operating Company Number) : 4604 Coverage Area Name : HAMMOND Latitude : 41.6175 Longitude : -87.5207 ‹ previous : 219-230 next › : 219-232 Telephone Number List 219-230-0000 ~ 219-230-9999