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Area Codes > 603 > Central Office Codes

Exchange Rate Center State Operating Company
603-824 SALEM NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-825 LACONIA NH GLOBAL NAPS, INC. - NH
603-826 CHARLESTN NH VERIZON NEW ENGLAND INC.
603-827 HARRISVL NH VERIZON NEW ENGLAND INC.
603-828 PORTSMOUTH NH BELL ATLANTIC NYNEX MOBILE
603-829 SUNAPEE NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-831 GREENFIELD NH BELL ATLANTIC NYNEX MOBILE
603-832 LACONIA NH LIGHTSHIP TELECOM, LLC - NH
603-833 ROCHESTER NH BELL ATLANTIC NYNEX MOBILE
603-834 DOVER NH CONVERSENT COMMUNICATIONS OF NEW HAMPSHIRE, LLC
603-835 ALSTEAD NH VERIZON NEW ENGLAND INC.
603-836 MANCHESTER NH LEVEL 3 COMMUNICATIONS - NH
603-837 WHITEFIELD NH VERIZON NEW ENGLAND INC.
603-838 LISBON NH VERIZON NEW ENGLAND INC.
603-839 FARMINGTON NH TIME WARNER CABLE INFORMATION SVCS (NEW HAMPSHIRE)
603-841 SOMERSWTH NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-842 DOVER NH PAETEC COMMUNICATIONS, INC. - NH
603-843 NEWPORT NH FREEDOM RING COMMUNICATIONS, LLC
603-844 NH
603-845 DERRY NH LIGHTSHIP TELECOM, LLC - NH
603-846 TWIN MT NH VERIZON NEW ENGLAND INC.
603-847 SULLIVAN NH VERIZON NEW ENGLAND INC.
603-848 CONCORD NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-849 EXETER NH GLOBAL NAPS, INC. - NH
603-851 MANCHESTER NH RURAL CELLULAR CORPORATION
603-852 KEENE NH OMNIPOINT MIAMI E LICENSE, LLC
603-853 WOODSVILLE NH FREEDOM RING COMMUNICATIONS, LLC
603-854 MANCHESTER NH NEW CINGULAR WIRELESS PCS, LLC - MA
603-856 CONCORD NH CHOICE ONE OF NEW HAMPSHIRE, INC.
603-858 MANCHESTER NH OMNIPOINT MIAMI E LICENSE, LLC
603-859 NEW DURHAM NH UNION TELEPHONE CO. - NH
603-860 MANCHESTER NH BELL ATLANTIC NYNEX MOBILE
603-861 TAMWORTH NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-862 DURHAM NH PAETEC COMMUNICATIONS, INC. - NH
603-863 NEWPORT NH VERIZON NEW ENGLAND INC.
603-864 NASHUA NH VERIZON NEW ENGLAND INC.
603-865 NEWPORT NH VERIZON NEW ENGLAND INC.
603-866 DOVER NH OMNIPOINT MIAMI E LICENSE, LLC
603-867 MANCHESTER NH NEW CINGULAR WIRELESS PCS, LLC - MA
603-868 DURHAM NH VERIZON NEW ENGLAND INC.
603-869 BETHLEHEM NH VERIZON NEW ENGLAND INC.
603-870 SALEM NH VERIZON NEW ENGLAND INC.
603-871 SANBORNVL NH LEVEL 3 COMMUNICATIONS - NH
603-873 SUNAPEE NH LEVEL 3 COMMUNICATIONS - NH
603-874 MONROE NH LEVEL 3 COMMUNICATIONS - NH
603-875 ALTON NH UNION TELEPHONE CO. - NH
603-876 MARLBOROGH NH VERIZON NEW ENGLAND INC.
603-878 GREENVILLE NH VERIZON NEW ENGLAND INC.
603-879 NASHUA NH VERIZON NEW ENGLAND INC.
603-880 NASHUA NH VERIZON NEW ENGLAND INC.
603-881 NASHUA NH VERIZON NEW ENGLAND INC.
603-882 NASHUA NH VERIZON NEW ENGLAND INC.
603-883 NASHUA NH VERIZON NEW ENGLAND INC.
603-884 NASHUA NH VERIZON NEW ENGLAND INC.
603-885 NASHUA NH VERIZON NEW ENGLAND INC.
603-886 NASHUA NH VERIZON NEW ENGLAND INC.
603-887 CHESTER NH GRANITE STATE TELEPHONE, INC.
603-888 NASHUA NH VERIZON NEW ENGLAND INC.
603-889 NASHUA NH VERIZON NEW ENGLAND INC.
603-890 SALEM NH VERIZON NEW ENGLAND INC.
603-891 NASHUA NH VERIZON NEW ENGLAND INC.
603-892 CONCORD NH OMNIPOINT MIAMI E LICENSE, LLC
603-893 SALEM NH VERIZON NEW ENGLAND INC.
603-894 SALEM NH VERIZON NEW ENGLAND INC.
603-895 RAYMOND NH VERIZON NEW ENGLAND INC.
603-896 SALEM NH VERIZON NEW ENGLAND INC.
603-897 NASHUA NH VERIZON NEW ENGLAND INC.
603-898 SALEM NH VERIZON NEW ENGLAND INC.
603-899 RINDGE NH VERIZON NEW ENGLAND INC.
603-903 KEENE NH TIME WARNER CABLE INFORMATION SVCS (NEW HAMPSHIRE)
603-904 WALPOLE NH OTEL TELEKOM, INC. - NH
603-905 BARRINGTON NH OTEL TELEKOM, INC. - NH
603-907 HAMPSTEAD NH GLOBAL NAPS, INC. - NH
603-908 ALSTEAD NH GLOBAL NAPS, INC. - NH
603-909 CHARLESTN NH GLOBAL NAPS, INC. - NH
603-910 HAMPTON NH CONVERSENT COMMUNICATIONS OF NEW HAMPSHIRE, LLC
603-911 NH
603-912 SALEM NH RNK, INC.
603-913 MERRIMACK NH PAETEC COMMUNICATIONS, INC. - NH
603-915 GORHAM NH RURAL CELLULAR CORPORATION
603-917 KEENE NH GLOBAL NAPS, INC. - NH
603-918 HAMPTON NH BELL ATLANTIC NYNEX MOBILE
603-920 NH
603-922 NO STRATFD NH VERIZON NEW ENGLAND INC.
603-923 ROCHESTER NH LEVEL 3 COMMUNICATIONS - NH
603-924 PETERBROGH NH VERIZON NEW ENGLAND INC.
603-925 PETERBROGH NH FREEDOM RING COMMUNICATIONS, LLC
603-926 HAMPTON NH VERIZON NEW ENGLAND INC.
603-927 SUTTON NH MERRIMACK COUNTY TELEPHONE CO.
603-928 SUNCOOK NH FREEDOM RING COMMUNICATIONS, LLC
603-929 HAMPTON NH VERIZON NEW ENGLAND INC.
603-930 NASHUA NH NEW CINGULAR WIRELESS PCS, LLC - MA
603-932 MANCHESTER NH SECURESYSCOM, INC. - NH
603-934 FRANKLIN NH VERIZON NEW ENGLAND INC.
603-935 MANCHESTER NH DSCI CORPORATION - NH
603-936 NH
603-937 MEREDITH NH BELL ATLANTIC NYNEX MOBILE
603-938 BRADFORD NH MERRIMACK COUNTY TELEPHONE CO.
603-939 EASTCONWAY NH NORTHLAND TELEPHONE OF MAINE, INC.
603-940 NH