Area Code 630-528 located in WEST CHICAGO, DUPAGE, IL, more detail is as below. Place NPA (Numbering Plan Area) : 630 NXX (Local Number Prefix) : 528 City : WEST CHICAGO County : DUPAGE State : IL (Illinois) NXX Use Type : Wireless NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 17043 LATA (Local Access Transport Area) : 358 Rate Center : HINSDALE ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 60186 Other Information NPANXX : 630528 Switch CLLI (Common Language Location Identifier) : BURGILAHCM3 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 : CIMCO COMMUNICATIONS, INC. - IL OCN (Operating Company Number) : 5917 Coverage Area Name : HINSDALE Latitude : 41.8085 Longitude : -87.9337 ‹ previous : 630-527 next › : 630-529 Telephone Number List 630-528-0000 ~ 630-528-9999