Area Code 224-678 located in ALGONQUIN, MCHENRY, IL, more detail is as below. Place NPA (Numbering Plan Area) : 224 NXX (Local Number Prefix) : 678 City : ALGONQUIN County : MCHENRY State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 6/19/2006 FIPS (Federal Information Processing Standards) : 17111 LATA (Local Access Transport Area) : 358 Rate Center : ALGONQUIN ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 60102 Other Information NPANXX : 224678 County Population : 0 Switch CLLI (Common Language Location Identifier) : CHCGILNEDSZ 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 : LEVEL 3 COMMUNICATIONS, LLC - IL OCN (Operating Company Number) : 6115 Coverage Area Name : ALGONQUIN Latitude : 42.1685 Longitude : -88.2910 ‹ previous : 224-677 next › : 224-685 Telephone Number List 224-678-0000 ~ 224-678-9999