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Area Code — 224

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