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Area Codes > 603 > Central Office Codes

Exchange Rate Center State Operating Company
603-201 NH
603-202 NH
603-203 MANCHESTER NH NEW CINGULAR WIRELESS PCS, LLC - MA
603-204 NASHUA NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-205 PORTSMOUTH NH OMNIPOINT MIAMI E LICENSE, LLC
603-206 MANCHESTER NH PAETEC COMMUNICATIONS, INC. - NH
603-208 LYME NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-209 KEENE NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-210 SUNCOOK NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-211 NH
603-212 SALEM NH VERIZON NEW ENGLAND INC.
603-214 ERROL NH FREEDOM RING COMMUNICATIONS, LLC
603-215 BERLIN NH FREEDOM RING COMMUNICATIONS, LLC
603-216 DERRY NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-217 BRISTOL NH RNK, INC.
603-218 MANCHESTER NH BROADVIEW NETWORKS, INC. - NH
603-219 CONCORD NH SPRINT SPECTRUM L.P. - NH
603-220 NH
603-221 NASHUA NH VERIZON NEW ENGLAND INC.
603-222 MANCHESTER NH VERIZON NEW ENGLAND INC.
603-223 CONCORD NH VERIZON NEW ENGLAND INC.
603-224 CONCORD NH VERIZON NEW ENGLAND INC.
603-225 CONCORD NH VERIZON NEW ENGLAND INC.
603-226 CONCORD NH VERIZON NEW ENGLAND INC.
603-227 CONCORD NH VERIZON NEW ENGLAND INC.
603-228 CONCORD NH VERIZON NEW ENGLAND INC.
603-229 CONCORD NH VERIZON NEW ENGLAND INC.
603-230 CONCORD NH VERIZON NEW ENGLAND INC.
603-231 DERRY NH NEXTEL COMMUNICATIONS, INC.
603-232 MANCHESTER NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-233 NASHUA NH OMNIPOINT MIAMI E LICENSE, LLC
603-234 DERRY NH NEXTEL COMMUNICATIONS, INC.
603-235 DERRY NH NEXTEL COMMUNICATIONS, INC.
603-236 CAMPTON NH VERIZON NEW ENGLAND INC.
603-237 COLEBROOK NH VERIZON NEW ENGLAND INC.
603-238 PLYMOUTH NH PAETEC COMMUNICATIONS, INC. - NH
603-239 WINCHESTER NH VERIZON NEW ENGLAND INC.
603-240 MANCHESTER NH VERIZON NEW ENGLAND INC.
603-241 MANCHESTER NH VERIZON NEW ENGLAND INC.
603-242 TROY NH VERIZON NEW ENGLAND INC.
603-243 NH
603-244 RAYMOND NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-245 PORTSMOUTH NH VERIZON NEW ENGLAND INC.
603-246 WSTEWATSTN NH VERIZON NEW ENGLAND INC.
603-247 DERRY NH NEW CINGULAR WIRELESS PCS, LLC - MA
603-248 DOVER NH VERIZON NEW ENGLAND INC.
603-249 MILFORD NH VERIZON NEW ENGLAND INC.
603-250 CENTER HBR NH FREEDOM RING COMMUNICATIONS, LLC
603-251 SALEM NH GLOBAL NAPS, INC. - NH
603-252 W LEBANON NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-253 CENTER HBR NH VERIZON NEW ENGLAND INC.
603-254 PLYMOUTH NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-255 DIXVL NTCH NH DIXVILLE TELEPHONE CO.
603-256 WCHESTEFLD NH VERIZON NEW ENGLAND INC.
603-257 PLAISTOW NH FREEDOM RING COMMUNICATIONS, LLC
603-258 PETERBROGH NH GLOBAL NAPS, INC. - NH
603-259 LITTLETON NH LEVEL 3 COMMUNICATIONS - NH
603-260 NH
603-261 MERRIMACK NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-262 MERRIMACK NH VERIZON NEW ENGLAND INC.
603-263 MANCHESTER NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-264 MANCHESTER NH OMNIPOINT MIAMI E LICENSE, LLC
603-265 NEW BOSTON NH OMNIPOINT MIAMI E LICENSE, LLC
603-266 TILTON NH VERIZON NEW ENGLAND INC.
603-267 BELMONT NH VERIZON NEW ENGLAND INC.
603-268 SUNCOOK NH VERIZON NEW ENGLAND INC.
603-269 CTRBARNSTE NH UNION TELEPHONE CO. - NH
603-270 SUNCOOK NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-271 CONCORD NH VERIZON NEW ENGLAND INC.
603-272 PIERMONT NH VERIZON NEW ENGLAND INC.
603-273 LACONIA NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-274 SO HAMPTON NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-275 DERRY NH OMNIPOINT MIAMI E LICENSE, LLC
603-276 W LEBANON NH RURAL CELLULAR CORPORATION
603-277 HANOVER NH COMCAST PHONE OF MASSACHUSETTS, INC. - MA
603-278 BRETTON WD NH BRETTON WOODS TELEPHONE CO.
603-279 MEREDITH NH VERIZON NEW ENGLAND INC.
603-280 BARRINGTON NH LEVEL 3 COMMUNICATIONS - NH
603-281 NASHUA NH VERIZON NEW ENGLAND INC.
603-282 CANAAN NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-283 KEENE NH PAETEC COMMUNICATIONS, INC. - NH
603-284 CTRSANDWIH NH VERIZON NEW ENGLAND INC.
603-285 DOVER NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-286 TILTON NH VERIZON NEW ENGLAND INC.
603-287 CLAREMONT NH LEVEL 3 COMMUNICATIONS - NH
603-288 WOODSVILLE NH GLOBAL NAPS, INC. - NH
603-289 MANCHESTER NH NEW CINGULAR WIRELESS PCS, LLC - MA
603-290 CONCORD NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-291 GREENVILLE NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-292 NEW MARKET NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-293 LACONIA NH VERIZON NEW ENGLAND INC.
603-294 PORTSMOUTH NH LEVEL 3 COMMUNICATIONS - NH
603-295 DURHAM NH PAETEC COMMUNICATIONS, INC. - NH
603-296 MANCHESTER NH CHOICE ONE OF NEW HAMPSHIRE, INC.
603-297 CTROSSIPEE NH FREEDOM RING COMMUNICATIONS, LLC
603-298 W LEBANON NH VERIZON NEW ENGLAND INC.
603-299 DOVER NH GLOBAL NAPS, INC. - NH
603-300 CHESTER NH NEXTEL COMMUNICATIONS, INC.
603-301 CTROSSIPEE NH RNK, INC.
603-302 MANCHESTER NH VERIZON NEW ENGLAND INC.