Area Code 630-403 located in GLEN ELLYN, DUPAGE, IL, more detail is as below. Place NPA (Numbering Plan Area) : 630 NXX (Local Number Prefix) : 403 City : GLEN ELLYN County : DUPAGE State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1997-07-06 FIPS (Federal Information Processing Standards) : 17043 LATA (Local Access Transport Area) : 358 Rate Center : GLEN ELLYN ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 60137 Other Information NPANXX : 630403 Switch CLLI (Common Language Location Identifier) : CHCGILCPDS5 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 : PAETEC COMMUNICATIONS, INC. - IL OCN (Operating Company Number) : 4717 Coverage Area Name : GLEN ELLYN Latitude : 41.8766 Longitude : -88.0663 ‹ previous : 630-402 next › : 630-404 Telephone Number List 630-403-0000 ~ 630-403-9999