Area Code — 224

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Rate centers: ARLIGTNHTS, NORTHBROOK, LIBERTYVL, BARTLETT, ALGONQUIN, LAKEFOREST, WINNETKA, DESPLAINES, HAMPSHIRE, ELK GROVE, FOX LAKE, ELGIN, SKOKIE, WAUKEGAN, GLENVIEW, ANTIOCH, ROUND LAKE, WHEELING, LAKEZURICH, DUNDEE, DEERFIELD, ZION, HALF DAY, ROSELLE, CARY, MUNDELEIN, EVANSTON, LAKE VILLA, BARRINGTON, GRAYSLAKE, HUNTLEY, PALATINE, PARK RIDGE, HIGHLANDPK, PLATO CTR, WAUCONDA

Companies: DENALI SPECTRUM LICENSE, LLC, BANDWIDTH.COM CLEC, LLC, XO ILLINOIS, INC., CELLCO PARTNERSHIP DBA VERIZON WIRELESS, TDS METROCOM INC., CIMCO COMMUNICATIONS, INC., CBEYOND COMMUNICATIONS, LLC, GLOBALCOM, INC., LEVEL 3 COMMUNICATIONS, LLC, AT&T LOCAL, SIGECOM, LLC, US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL, GLOBAL CROSSING LOCAL SERVICES, INC., PEERLESS NETWORK OF ILLINOIS, LLC, NEW CINGULAR WIRELESS PCS, LLC, SPRINT SPECTRUM L.P., T-MOBILE USA, INC., YMAX COMMUNICATIONS CORP., AMERITECH ILLINOIS, ACCESS ONE, INC., SBC INTERNET SERVICES, INC., ALLEGIANCE TELECOM, INC., NEXTEL COMMUNICATIONS, INC., BROADWING COMMUNICATIONS, LLC, MCI WORLDCOM COMMUNICATIONS, INC., PAETEC COMMUNICATIONS, INC., COMCAST PHONE OF ILLINOIS, LLC DBA COMCO, OVATION COMMUNICATIONS OF ILLINOIS, INC., TELEPORT COMMUNICATIONS GROUP - CHICAGO, UNITED STATES CELLULAR CORP.LINOIS, MCIMETRO ACCESS TRANSMISSION SERVICES LLC, INFOTELECOM, LLC, SPRINT COMMUNICATIONS COMPANY, L.P., MEDIACOM TELEPHONY OF ILLINOIS, LLC, CYGNUS TELECOMMUNICATIONS CORPORATION

List of 224 Area-Code Phone Number Prefixes

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