Area Code 224-326 located in MOUNT PROSPECT, COOK, IL, more detail is as below. Place NPA (Numbering Plan Area) : 224 NXX (Local Number Prefix) : 326 City : MOUNT PROSPECT County : COOK State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 4/23/2013 FIPS (Federal Information Processing Standards) : 17031 LATA (Local Access Transport Area) : 358 Rate Center : NORTHBROOK ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 60056 Other Information NPANXX : 224326 County Population : 0 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 : COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL OCN (Operating Company Number) : 7607 Coverage Area Name : MT PROSPECT Latitude : None Longitude : None ‹ previous : 224-325 next › : 224-330 Telephone Number List 224-326-0000 ~ 224-326-9999