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Area Codes > 773 > Central Office Codes

Exchange Rate Center State Operating Company
773-723 CHICGOZN07 IL AMERITECH ILLINOIS
773-724 CHICGOZN03 IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
773-725 CHICGOZN03 IL AMERITECH ILLINOIS
773-726 CHICGOZN07 IL OVATION COMMUNICATIONS OF ILLINOIS, INC.
773-727 CHICGOZN10 IL T-MOBILE USA, INC.
773-728 CHICGOZN02 IL AMERITECH ILLINOIS
773-729 CHICGOZN07 IL OVATION COMMUNICATIONS OF ILLINOIS, INC.
773-730 CHICGOZN02 IL AMERITECH ILLINOIS
773-731 CHICGOZN09 IL AMERITECH ILLINOIS
773-732 CHICGOZN03 IL T-MOBILE USA, INC.
773-733 CHICGOZN06 IL OVATION COMMUNICATIONS OF ILLINOIS, INC.
773-734 CHICGOZN09 IL AMERITECH ILLINOIS
773-735 CHICGOZN08 IL AMERITECH ILLINOIS
773-736 CHICGOZN03 IL AMERITECH ILLINOIS
773-737 CHICGOZN08 IL AMERITECH ILLINOIS
773-738 CHICGOZN03 IL SPRINT SPECTRUM L.P.
773-739 CHICGOZN02 IL OVATION COMMUNICATIONS OF ILLINOIS, INC.
773-740 CHICGOZN01 IL AMERICAN MESSAGING (AM), INC.
773-741 CHICGOZN11 IL AMERITECH ILLINOIS
773-742 CHICGOZN03 IL T-MOBILE USA, INC.
773-743 CHICGOZN02 IL AMERITECH ILLINOIS
773-744 CHICGOZN06 IL T-MOBILE USA, INC.
773-745 CHICGOZN05 IL AMERITECH ILLINOIS
773-746 CHICGOZN03 IL SPRINT SPECTRUM L.P.
773-747 CHICGOZN04 IL T-MOBILE USA, INC.
773-748 CHICGOZN01 IL BEEPERMART, INC.
773-749 CHICGOZN03 IL SPRINT SPECTRUM L.P.
773-750 CHICGOZN03 IL NEW CINGULAR WIRELESS PCS, LLC - IL
773-751 CHICGOZN02 IL XO ILLINOIS, INC.
773-752 CHICGOZN07 IL AMERITECH ILLINOIS
773-753 CHICGOZN07 IL AMERITECH ILLINOIS
773-754 CHICGOZN02 IL COMCAST PHONE OF ILLINOIS, LLC - IL
773-755 CHICGOZN04 IL AMERITECH ILLINOIS
773-756 CHICGOZN03 IL MCIMETRO, ATS, INC.
773-757 CHICGOZN08 IL TELEPORT COMMUNICATIONS GROUP - CHICAGO
773-758 CHICGOZN01 IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
773-759 CHICGOZN03 IL UNITED STATES CELLULAR CORP. - ILLINOIS
773-760 CHICGOZN01 IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
773-761 CHICGOZN02 IL AMERITECH ILLINOIS
773-762 CHICGOZN06 IL AMERITECH ILLINOIS
773-763 CHICGOZN03 IL AMERITECH ILLINOIS
773-764 CHICGOZN02 IL AMERITECH ILLINOIS
773-765 CHICGOZN02 IL TELEPORT COMMUNICATIONS GROUP - CHICAGO
773-767 CHICGOZN08 IL AMERITECH ILLINOIS
773-768 CHICGOZN09 IL AMERITECH ILLINOIS
773-769 CHICGOZN02 IL AMERITECH ILLINOIS
773-770 CHICGOZN04 IL OVATION COMMUNICATIONS OF ILLINOIS, INC.
773-771 CHICGOZN01 IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
773-772 CHICGOZN04 IL AMERITECH ILLINOIS
773-773 IL
773-774 CHICGOZN03 IL AMERITECH ILLINOIS
773-775 CHICGOZN03 IL AMERITECH ILLINOIS
773-776 CHICGOZN08 IL AMERITECH ILLINOIS
773-777 CHICGOZN03 IL AMERITECH ILLINOIS
773-778 CHICGOZN08 IL AMERITECH ILLINOIS
773-779 CHICGOZN10 IL AMERITECH ILLINOIS
773-780 CHICGOZN08 IL OVATION COMMUNICATIONS OF ILLINOIS, INC.
773-781 CHICGOZN01 IL AMERICAN MESSAGING (AM), INC.
773-782 CHICGOZN04 IL AMERITECH ILLINOIS
773-783 CHICGOZN07 IL AMERITECH ILLINOIS
773-784 CHICGOZN02 IL AMERITECH ILLINOIS
773-785 CHICGOZN10 IL AMERITECH ILLINOIS
773-786 CHICGOZN05 IL OVATION COMMUNICATIONS OF ILLINOIS, INC.
773-787 CHICGOZN10 IL XO ILLINOIS, INC.
773-788 CHICGOZN08 IL AMERITECH ILLINOIS
773-789 CHICGOZN08 IL SIGECOM, LLC - IL
773-790 CHICGOZN03 IL LEVEL 3 COMMUNICATIONS, LLC - IL
773-791 CHICGOZN03 IL NEW CINGULAR WIRELESS PCS, LLC - IL
773-792 CHICGOZN03 IL AMERITECH ILLINOIS
773-793 CHICGOZN03 IL SPRINT SPECTRUM L.P.
773-794 CHICGOZN03 IL AMERITECH ILLINOIS
773-795 CHICGOZN07 IL AMERITECH ILLINOIS
773-796 CHICGOZN01 IL AMERITECH ILLINOIS
773-797 CHICGOZN05 IL BROADWING COMMUNICATIONS, LLC - IL
773-799 CHICGOZN04 IL MCIMETRO, ATS, INC.
773-801 CHICGOZN06 IL AMERITECH ILLINOIS
773-802 CHICGOZN01 IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
773-803 CHICGOZN03 IL SPRINT SPECTRUM L.P.
773-804 CHICGOZN05 IL AMERITECH ILLINOIS
773-805 CHICGOZN01 IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
773-806 CHICGOZN01 IL NEW CINGULAR WIRELESS PCS, LLC - IL
773-807 CHICGOZN02 IL T-MOBILE USA, INC.
773-808 CHICGOZN07 IL NEXTEL COMMUNICATIONS, INC.
773-810 CHICGOZN01 IL NEW CINGULAR WIRELESS PCS, LLC - IL
773-811 IL
773-813 CHICGOZN01 IL NEW CINGULAR WIRELESS PCS, LLC - IL
773-814 CHICGOZN03 IL T-MOBILE USA, INC.
773-816 CHICGOZN10 IL T-MOBILE USA, INC.
773-817 CHICGOZN03 IL T-MOBILE USA, INC.
773-818 CHICGOZN01 IL T-MOBILE USA, INC.
773-820 CHICGOZN01 IL NEW CINGULAR WIRELESS PCS, LLC - IL
773-821 CHICGOZN10 IL AMERITECH ILLINOIS
773-822 CHICGOZN06 IL T-MOBILE USA, INC.
773-823 CHICGOZN06 IL AT&T LOCAL
773-824 CHICGOZN03 IL TELEPORT COMMUNICATIONS GROUP - CHICAGO
773-825 CHICGOZN11 IL AMERITECH ILLINOIS
773-826 CHICGOZN06 IL AMERITECH ILLINOIS
773-827 CHICGOZN06 IL T-MOBILE USA, INC.
773-828 CHICGOZN02 IL LEVEL 3 COMMUNICATIONS, LLC - IL
773-829 CHICGOZN04 IL LEVEL 3 COMMUNICATIONS, LLC - IL