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Area Codes > 303 > Central Office Codes

Exchange Rate Center State Operating Company
303-901 DENVER CO NEXTEL COMMUNICATIONS, INC.
303-902 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-903 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-904 DENVER CO QWEST CORPORATION
303-905 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-906 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-907 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-908 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-909 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-910 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-911 CO
303-912 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-913 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-914 DENVER CO QWEST CORPORATION
303-915 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-916 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-917 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-918 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-919 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-920 DENVER CO QWEST CORPORATION
303-921 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-922 DENVER CO QWEST CORPORATION
303-923 DENVERSLVN CO ICG TELECOM GROUP - CO
303-924 DENVER CO QWEST CORPORATION
303-925 DENVER CO QWEST CORPORATION
303-926 DENVER CO QWEST CORPORATION
303-927 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-928 DENVER CO MCIMETRO, ATS, INC.
303-929 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-930 DENVER CO QWEST CORPORATION
303-931 DENVER CO T-MOBILE USA, INC.
303-932 DENVER CO QWEST CORPORATION
303-933 DENVER CO QWEST CORPORATION
303-934 DENVER CO QWEST CORPORATION
303-935 DENVER CO QWEST CORPORATION
303-936 DENVER CO QWEST CORPORATION
303-937 DENVER CO QWEST CORPORATION
303-938 DENVER CO QWEST CORPORATION
303-939 DENVER CO QWEST CORPORATION
303-940 DENVER CO QWEST CORPORATION
303-941 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-942 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-943 DENVER CO NEXTWAVE TELECOM, INC DBA NEXTWAVE WIRELESS
303-944 DENVER CO NEXTEL COMMUNICATIONS, INC.
303-945 DENVER CO MCIMETRO, ATS, INC.
303-946 DENVER CO SPRINT SPECTRUM L.P.
303-947 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-948 DENVER CO QWEST CORPORATION
303-949 DENVER CO SPRINT SPECTRUM L.P.
303-950 CO
303-951 DENVER CO LEVEL 3 COMMUNICATIONS, LLC - CO
303-952 DENVER CO LEVEL 3 COMMUNICATIONS, LLC - CO
303-953 DENVER CO LEVEL 3 COMMUNICATIONS, LLC - CO
303-954 DENVER CO LEVEL 3 COMMUNICATIONS, LLC - CO
303-955 DENVER CO GLOBAL CROSSING LOCAL SERVICES, INC.-CO
303-956 FORTLUPTON CO BLUE LICENSES HOLDING, LLC
303-957 DENVER CO GLOBAL CROSSING LOCAL SERVICES, INC.-CO
303-958 CO
303-959 CO
303-960 DENVER CO T-MOBILE USA, INC.
303-961 DENVER CO NEXTEL COMMUNICATIONS, INC.
303-962 DENVER CO CBEYOND COMMUNICATIONS, LLC-CO
303-963 DENVER CO ICG TELECOM GROUP - CO
303-964 DENVER CO QWEST CORPORATION
303-965 DENVER CO QWEST CORPORATION
303-966 DENVER CO QWEST CORPORATION
303-967 DENVER CO QWEST CORPORATION
303-968 DENVER CO MCIMETRO, ATS, INC.
303-969 DENVER CO QWEST CORPORATION
303-970 CO QWEST CORPORATION
303-971 DENVER CO QWEST CORPORATION
303-972 DENVER CO QWEST CORPORATION
303-973 DENVER CO QWEST CORPORATION
303-974 DENVER CO GLOBAL CROSSING LOCAL SERVICES, INC.-CO
303-975 DENVER CO QWEST CORPORATION
303-976 CO
303-977 DENVER CO QWEST CORPORATION
303-978 DENVER CO QWEST CORPORATION
303-979 DENVER CO QWEST CORPORATION
303-980 DENVER CO QWEST CORPORATION
303-981 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-982 DENVER CO QWEST CORPORATION
303-983 CO
303-984 DENVER CO QWEST CORPORATION
303-985 DENVER CO QWEST CORPORATION
303-986 DENVER CO QWEST CORPORATION
303-987 DENVER CO QWEST CORPORATION
303-988 DENVER CO QWEST CORPORATION
303-989 DENVER CO QWEST CORPORATION
303-990 FORTLUPTON CO NEXTEL COMMUNICATIONS, INC.
303-991 DENVER CO ALLEGIANCE TELECOM OF COLORADO, INC.
303-992 DENVER CO QWEST CORPORATION
303-993 DENVER CO NEUTRAL TANDEM-COLORADO, LLC - CO
303-994 DENVER CO NEXTEL COMMUNICATIONS, INC.
303-995 DENVER CO SPRINT SPECTRUM L.P.
303-996 DENVER CO ESCHELON TELECOM OF COLORADO, INC. - CO
303-997 DENVER CO PAC - WEST TELECOMM, INC. - CO
303-998 DENVER CO QWEST CORPORATION
303-999 DENVER CO COMCAST PHONE OF COLORADO, LLC - CO