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Area Codes > 815 > Central Office Codes

Exchange Rate Center State Operating Company
815-905 LOCKPORT IL LEVEL 3 COMMUNICATIONS, LLC - IL
815-906 MT CARROLL IL SPRINT COMMUNICATIONS COMPANY, L.P. - IL
815-907 MANTENO IL BROADWING COMMUNICATIONS, LLC - IL
815-908 FREEPORT IL SPRINT COMMUNICATIONS COMPANY, L.P. - IL
815-909 DE KALB IL SPRINT COMMUNICATIONS COMPANY, L.P. - IL
815-910 MENDOTA IL ILLINOIS VALLEY CELLULAR RSA 2-I PARTNERSHIP
815-911 IL
815-912 BELVIDERE IL AERO COMMUNICATIONS, INC. - IL
815-913 CHADWICK IL SPRINT COMMUNICATIONS COMPANY, L.P. - IL
815-914 ROCKFORD IL SPRINT SPECTRUM L.P.
815-915 PRINCETON IL LEVEL 3 COMMUNICATIONS, LLC - IL
815-916 PLATTVILLE IL NEXTEL COMMUNICATIONS, INC.
815-917 ROCHELLE IL ESSEX TELCOM, INC.
815-918 CLIFTON IL LEVEL 3 COMMUNICATIONS, LLC - IL
815-919 JOLIET IL T-MOBILE USA, INC.
815-920 CORNELL IL SPRINT COMMUNICATIONS COMPANY, L.P. - IL
815-921 ROCKFORD IL AMERITECH ILLINOIS
815-922 KANKAKEE IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-923 UNION IL AMERITECH ILLINOIS
815-924 PROPHETSTN IL ESSEX TELCOM, INC.
815-925 HENNEPIN IL VERIZON NORTH INC.-IL
815-926 WILMINGTON IL BROADWING COMMUNICATIONS, LLC - IL
815-927 JOLIET IL BROADWING COMMUNICATIONS, LLC - IL
815-928 KANKAKEE IL AMERITECH ILLINOIS
815-929 KANKAKEE IL AMERITECH ILLINOIS
815-930 ELIZABETH IL SPRINT COMMUNICATIONS COMPANY, L.P. - IL
815-931 JOLIET IL NEW CINGULAR WIRELESS PCS, LLC - IL
815-932 KANKAKEE IL AMERITECH ILLINOIS
815-933 KANKAKEE IL AMERITECH ILLINOIS
815-934 EMINGTON IL VERIZON NORTH INC.-IL
815-935 KANKAKEE IL AMERITECH ILLINOIS
815-936 KANKAKEE IL AMERITECH ILLINOIS
815-937 KANKAKEE IL AMERITECH ILLINOIS
815-938 FORRESTON IL VERIZON NORTH INC.-IL (CONTEL)
815-939 KANKAKEE IL AMERITECH ILLINOIS
815-940 GARDNER IL LEVEL 3 COMMUNICATIONS, LLC - IL
815-941 MORRIS IL AMERITECH ILLINOIS
815-942 MORRIS IL AMERITECH ILLINOIS
815-943 HARVARD IL AMERITECH ILLINOIS
815-944 MOMENCE IL AMERITECH ILLINOIS
815-945 CHENOA IL VERIZON NORTH INC.-IL
815-946 POLO IL CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL
815-947 STOCKTON IL VERIZON NORTH INC.-IL (CONTEL)
815-948 HOOPPOLE IL CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL
815-949 CABERY IL VERIZON NORTH INC.-IL
815-950 IL
815-951 AMBOY IL ESSEX TELCOM, INC.
815-952 LANARK IL AERO COMMUNICATIONS, INC. - IL
815-953 KANKAKEE IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-954 KANKAKEE IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-955 JOLIET IL NEXTEL COMMUNICATIONS, INC.
815-956 MORRISON IL SPRINT COMMUNICATIONS COMPANY, L.P. - IL
815-957 ROCKTON IL LEVEL 3 COMMUNICATIONS, LLC - IL
815-958 IL AMERITECH ILLINOIS
815-959 IL AMERITECH ILLINOIS
815-960 LEAF RIVER IL NORTH COUNTY COMMUNICATIONS CORP. - CA
815-961 ROCKFORD IL AMERITECH ILLINOIS
815-962 ROCKFORD IL AMERITECH ILLINOIS
815-963 ROCKFORD IL AMERITECH ILLINOIS
815-964 ROCKFORD IL AMERITECH ILLINOIS
815-965 ROCKFORD IL AMERITECH ILLINOIS
815-966 ROCKFORD IL AMERITECH ILLINOIS
815-967 ROCKFORD IL AMERITECH ILLINOIS
815-968 ROCKFORD IL AMERITECH ILLINOIS
815-969 ROCKFORD IL AMERITECH ILLINOIS
815-970 SYCAMORE IL NEXTEL COMMUNICATIONS, INC.
815-971 ROCKFORD IL AMERITECH ILLINOIS
815-972 ROCKFORD IL AMERITECH ILLINOIS
815-973 DIXON IL UNITED STATES CELLULAR CORP. - ILLINOIS
815-974 THOMAS IL ESSEX TELCOM, INC.
815-975 BELVIDERE IL NEW CINGULAR WIRELESS PCS, LLC - IL
815-976 IL
815-977 ROCKFORD IL MCI WORLDCOM COMMUNICATIONS, INC. - IL
815-978 ROCKFORD IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-979 ROCKFORD IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-980 ROCKFORD IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-981 DE KALB IL LEVEL 3 COMMUNICATIONS, LLC - IL
815-982 TAMPICO IL ESSEX TELCOM, INC.
815-983 ROCKFORD IL AMERICAN MESSAGING (AM), INC.
815-984 WELLINGTON IL VERIZON SOUTH INC.-IL (ALLTEL)
815-985 ROCKFORD IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-986 ROCKFORD IL US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL
815-987 ROCKFORD IL AMERITECH ILLINOIS
815-988 ROCKFORD IL UNITED STATES CELLULAR CORP. - ILLINOIS
815-989 PROPHETSTN IL SPRINT COMMUNICATIONS COMPANY, L.P. - IL
815-990 FREEPORT IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-991 SYCAMORE IL ESSEX TELCOM, INC.
815-992 STREATOR IL NEXTEL COMMUNICATIONS, INC.
815-993 OGLESBY IL NEW CINGULAR WIRELESS PCS, LLC - IL
815-994 DIXON IL NEXTEL COMMUNICATIONS, INC.
815-995 BELVIDERE IL NEW CINGULAR WIRELESS PCS, LLC - IL
815-996 SAVANNA IL NEXTEL COMMUNICATIONS, INC.
815-997 ROCKFORD IL MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- IL
815-998 ODELL IL VERIZON NORTH INC.-IL
815-999 JOLIET IL UNITED STATES CELLULAR CORP. - ILLINOIS