Area Code 224-623 located in LAKE IN THE HILLS, MCHENRY, IL, more detail is as below. Place NPA (Numbering Plan Area) : 224 NXX (Local Number Prefix) : 623 City : LAKE IN THE HILLS County : MCHENRY State : IL (Illinois) NXX Use Type : Wireless NXX Intro Version : 2002-05-01 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 : 60156 Other Information NPANXX : 224623 County Population : 0 Switch CLLI (Common Language Location Identifier) : CHCGILMFCM2 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 : T-MOBILE USA, INC. OCN (Operating Company Number) : 6529 Coverage Area Name : ALGONQUIN Latitude : 42.1685 Longitude : -88.2910 ‹ previous : 224-622 next › : 224-625 Telephone Number List 224-623-0000 ~ 224-623-9999