Area Code 872-400 located in CHICAGO, COOK, IL, more detail is as below. Place NPA (Numbering Plan Area) : 872 NXX (Local Number Prefix) : 400 City : CHICAGO County : COOK State : IL (Illinois) NXX Use Type : Wireless NXX Intro Version : 12/22/2010 FIPS (Federal Information Processing Standards) : 17031 LATA (Local Access Transport Area) : 358 Rate Center : CHICGOZN03 ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 60646 Other Information NPANXX : 872400 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 Overlay : L Company : DENALI SPECTRUM LICENSE, LLC OCN (Operating Company Number) : 701E Coverage Area Name : CHICAGO Latitude : 41.9749 Longitude : -87.7730 ‹ previous : 872-395 next › : 872-444 Telephone Number List 872-400-0000 ~ 872-400-9999