Area Code 219-989 located in HAMMOND, LAKE, IN, more detail is as below. Place NPA (Numbering Plan Area) : 219 NXX (Local Number Prefix) : 989 City : HAMMOND County : LAKE State : IN (Indiana) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 18089 LATA (Local Access Transport Area) : 358 Rate Center : HAMMOND ZIP Code Count : 490 ZIP Code Frequency : 64 ZIP Code : 46323 Other Information NPANXX : 219989 County Population : 0 Switch CLLI (Common Language Location Identifier) : HMNDINHEDS0 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 : AMERITECH INDIANA OCN (Operating Company Number) : 9325 Coverage Area Name : HAMMOND Latitude : 41.5833 Longitude : -87.4618 ‹ previous : 219-989 next › : 219-990 Telephone Number List 219-989-0000 ~ 219-989-9999