Area Code 630-666 located in ELMHURST, DUPAGE, IL, more detail is as below. Place NPA (Numbering Plan Area) : 630 NXX (Local Number Prefix) : 666 City : ELMHURST County : DUPAGE State : IL (Illinois) NXX Use Type : Wireless NXX Intro Version : 5/22/2007 FIPS (Federal Information Processing Standards) : 17043 LATA (Local Access Transport Area) : 358 Rate Center : ELMHURST ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 60126 Other Information NPANXX : 630666 Switch CLLI (Common Language Location Identifier) : ARLHILJQCM2 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 : SPRINT SPECTRUM L.P. OCN (Operating Company Number) : 6664 Coverage Area Name : ELMHURST Latitude : 41.9016 Longitude : -87.9445 ‹ previous : 630-665 next › : 630-667 Telephone Number List 630-666-0000 ~ 630-666-9999