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Area Codes > 203 > Central Office Codes

Exchange Rate Center State Operating Company
203-919 NORWALK CT OMNIPOINT COMMUNICATIONS, INC. - CT
203-920 NEW CANAAN CT BROOKS FIBER COMMUNICATIONS - CONNECTICUT
203-921 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-922 HUNTINGTON CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-923 BRIDGEPORT CT BROOKS FIBER COMMUNICATIONS - CONNECTICUT
203-924 HUNTINGTON CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-925 HUNTINGTON CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-926 HUNTINGTON CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-927 NEW HAVEN CT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT
203-928 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-929 HUNTINGTON CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-930 GREENWICH CT GLOBAL CROSSING LOCAL SERVICES, INC.-CT
203-931 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-932 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-933 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-934 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-935 MERIDEN CT GLOBAL CROSSING LOCAL SERVICES, INC.-CT
203-937 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-938 REDDING CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-940 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-942 DANBURY CT SPRINT SPECTRUM L.P.
203-943 NORWALK CT NEXTEL COMMUNICATIONS, INC.
203-944 HUNTINGTON CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-945 NORWALK CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-946 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-947 DANBURY CT NEW CINGULAR WIRELESS PCS, LLC - MA
203-948 DANBURY CT NEXTEL COMMUNICATIONS, INC.
203-949 WALLINGFD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-950 CT
203-951 MILFORD CT TELEPORT COMMUNICATIONS GROUP - NEW YORK - CT
203-952 NORWALK CT SPRINT SPECTRUM L.P.
203-953 BRIDGEPORT CT SPRINT SPECTRUM L.P.
203-954 ANSONIDRBY CT CHOICE ONE COMMUNICATIONS, INC. - CT
203-955 FAIRFIELD CT BROOKS FIBER COMMUNICATIONS - CONNECTICUT
203-956 NORWALK CT CABLEVISION LIGHTPATH, INC. - CT
203-957 STAMFORD CT AQUIS COMMUNICATIONS, INC.
203-958 CT
203-959 CT
203-961 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-962 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-963 NORWALK CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-964 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-965 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-966 NEW CANAAN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-967 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-968 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-969 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-971 GREENWICH CT CABLEVISION LIGHTPATH, INC. - CT
203-972 NEW CANAAN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-973 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-974 NEW HAVEN CT TELEPORT COMMUNICATIONS GROUP - NEW YORK - CT
203-975 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-976 CT
203-977 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-978 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-979 STAMFORD CT NEW CINGULAR WIRELESS PCS, LLC - MA
203-980 NEW HAVEN CT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT
203-981 NORWALK CT SPRINT SPECTRUM L.P.
203-982 WATERBURY CT SPRINT SPECTRUM L.P.
203-983 GREENWICH CT CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC - CT
203-984 NORWALK CT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT
203-985 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-986 OLDGRNWICH CT BROOKS FIBER COMMUNICATIONS - CONNECTICUT
203-987 GREENWICH CT LEVEL 3 COMMUNICATIONS, LLC - CT
203-988 NEW HAVEN CT NEW CINGULAR WIRELESS PCS, LLC - MA
203-989 STAMFORD CT LEVEL 3 COMMUNICATIONS, LLC - CT
203-990 OLDGRNWICH CT BROOKS FIBER COMMUNICATIONS - CONNECTICUT
203-991 NORWALK CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-992 GREENWICH CT CABLEVISION LIGHTPATH, INC. - CT
203-993 BRIDGEPORT CT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT
203-994 DANBURY CT NEXTEL COMMUNICATIONS, INC.
203-996 NEW HAVEN CT NEXTEL COMMUNICATIONS, INC.
203-998 STAMFORD CT LEVEL 3 COMMUNICATIONS, LLC - CT