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Area Codes > 231 > Central Office Codes

Exchange Rate Center State Operating Company
231-200 MI
231-201 CHIPPEWALK MI CENTENNIAL MICHIANA LICENSE COMPANY LLC
231-202 MECOSTA MI CENTENNIAL MICHIANA LICENSE COMPANY LLC
231-203 ALANSON MI DOBSON CELLULAR SYSTEMS, INC.
231-204 FIFE LAKE MI ARCH WIRELESS HOLDINGS, INC.
231-205 BRUTUS MI TELNET WORLDWIDE, INC.
231-206 MUSKEGON MI NEXTEL COMMUNICATIONS, INC.
231-207 HONOR MI TELNET WORLDWIDE, INC.
231-208 BOYNEFALLS MI TELNET WORLDWIDE, INC.
231-209 SUTTONSBAY MI TELNET WORLDWIDE, INC.
231-211 MI
231-214 LE ROY MI ARCH WIRELESS HOLDINGS, INC.
231-215 MUSKEGON MI CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI
231-217 BEAR LAKE MI TELNET WORLDWIDE, INC.
231-218 TRAVERSECY MI NEXTEL COMMUNICATIONS, INC.
231-219 MERRITT MI TELNET WORLDWIDE, INC.
231-220 MUSKEGON MI LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI
231-222 EASTJORDAN MI LEVEL 3 COMMUNICATIONS, LLC - MI
231-223 OLDMISSION MI PENINSULA TELEPHONE CO.
231-224 FREMONT MI LUCRE, INC.
231-225 FREMONT MI LEVEL 3 COMMUNICATIONS, LLC - MI
231-226 GLEN LAKE MI TELNET WORLDWIDE, INC.
231-228 GLEN LAKE MI CENTURYTEL OF MICHIGAN, INC.
231-229 MOORESTOWN MI CENTURYTEL OF MICHIGAN, INC.
231-230 ELMIRA MI TELNET WORLDWIDE, INC.
231-231 MI
231-232 MOORESTOWN MI TELNET WORLDWIDE, INC.
231-233 LUDINGTON MI ALLTEL COMMUNICATIONS, INC. - MI
231-235 LEVERING MI TELNET WORLDWIDE, INC.
231-236 LAKE CITY MI TELNET WORLDWIDE, INC.
231-237 CHARLEVOIX MI AMERITECH MICHIGAN
231-238 INDIAN RIV MI AMERITECH MICHIGAN
231-239 LUDINGTON MI CENTURYTEL WIRELESS, INC.-MI
231-240 LAKE ANN MI TELNET WORLDWIDE, INC.
231-241 PENTWATER MI DAYSTARR, LLC DBA DAYSTARR COMMUNICATIONS - MI
231-242 HARBOR SPG MI AMERITECH MICHIGAN
231-243 ALANSON MI TELNET WORLDWIDE, INC.
231-249 CHEBOYGAN MI LUCRE, INC.
231-250 BIG RAPIDS MI ALLTEL COMMUNICATIONS, INC. - MI
231-255 ONEKAMA MI ARCH WIRELESS HOLDINGS, INC.
231-256 LKLEELANAU MI AMERITECH MICHIGAN
231-258 KALKASKA MI AMERITECH MICHIGAN
231-259 SHELBY MI CHARTER FIBERLINK - MICHIGAN, LLC - MI
231-262 ELMIRA MI ACD TELECOM, INC. - MI
231-263 KINGSLEY MI CENTURY TELEPHONE CO. OF NORTHERN MICHIGAN
231-264 ELK RAPIDS MI AMERITECH MICHIGAN
231-266 IRONS MI AMERITECH MICHIGAN
231-267 WILLIAMSBG MI AMERITECH MICHIGAN
231-268 CHEBOYGAN MI CENTURYTEL WIRELESS, INC.-MI
231-269 BUCKLEY MI ACE TELEPHONE CO. OF MICHIGAN, INC.
231-271 SUTTONSBAY MI CENTURYTEL OF MICHIGAN, INC.
231-274 TRAVERSECY MI AMERICAN MESSAGING (AM), INC.
231-275 LAKE ANN MI CENTURYTEL OF MICHIGAN, INC.
231-276 INTERLOCHN MI AMERITECH MICHIGAN
231-282 GRANT MI CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI
231-286 MUSKEGON MI CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI
231-287 BIG RAPIDS MI CENTURYTEL WIRELESS, INC.-MI
231-288 MUSKEGON MI NEW CINGULAR WIRELESS PCS, LLC - IL
231-290 INDIAN RIV MI DOBSON CELLULAR SYSTEMS, INC.
231-301 HART MI CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI
231-302 PETOSKEY MI LUCRE, INC.
231-305 BIG RAPIDS MI TELNET WORLDWIDE, INC.
231-306 CADILLAC MI TELNET WORLDWIDE, INC.
231-307 MORLEY MI CENTENNIAL MICHIANA LICENSE COMPANY LLC
231-308 CHARLEVOIX MI TELNET WORLDWIDE, INC.
231-309 MANISTEE MI TELNET WORLDWIDE, INC.
231-311 MI
231-312 FRANKFORT MI TELNET WORLDWIDE, INC.
231-313 TRAVERSECY MI DOBSON CELLULAR SYSTEMS, INC.
231-314 KALKASKA MI TELNET WORLDWIDE, INC.
231-315 MUSKEGON MI ARCH WIRELESS HOLDINGS, INC.
231-316 LUDINGTON MI TELNET WORLDWIDE, INC.
231-317 BOYNE CITY MI ARCH WIRELESS HOLDINGS, INC.
231-318 TRAVERSECY MI ARCH WIRELESS HOLDINGS, INC.
231-319 MACKINAWCY MI TELNET WORLDWIDE, INC.
231-320 MUSKEGON MI VERIZON NORTH INC.-MI
231-322 TRCHRIVBDG MI VERIZON NORTH INC.-MI
231-323 EASTJORDAN MI LUCRE, INC.
231-325 HONOR MI CENTURYTEL OF MICHIGAN, INC.
231-326 GLEN LAKE MI CENTURYTEL OF MICHIGAN, INC.
231-327 MUSKEGON MI CENTURYTEL WIRELESS, INC.-MI
231-328 MERRITT MI CENTURYTEL OF MICHIGAN, INC.
231-329 MUSKEGON MI ALLTEL COMMUNICATIONS, INC. - MI
231-330 PETOSKEY MI ALLTEL COMMUNICATIONS, INC. - MI
231-331 ALDEN MI VERIZON NORTH INC.-MI
231-332 MUSKEGON MI TELNET WORLDWIDE, INC.
231-333 CHEBOYGAN MI LEVEL 3 COMMUNICATIONS, LLC - MI
231-334 GLEN LAKE MI CENTURYTEL OF MICHIGAN, INC.
231-335 FREMONT MI CENTENNIAL MICHIANA LICENSE COMPANY LLC
231-336 LUDINGTON MI ARCH WIRELESS HOLDINGS, INC.
231-337 MCBAIN MI LUCRE, INC.
231-338 BALDWIN MI LUCRE, INC.
231-339 MUSKEGON MI AMERICAN MESSAGING (AM), INC.
231-340 ELMIRA MI ALLTEL COMMUNICATIONS, INC. - MI
231-341 CHEBOYGAN MI AMERICAN MESSAGING (AM), INC.
231-342 TRAVERSECY MI ALLTEL COMMUNICATIONS, INC. - MI
231-343 MUSKEGON MI SPRINT SPECTRUM L.P.- MI
231-344 PETOSKEY MI TELNET WORLDWIDE, INC.
231-345 REED CITY MI LUCRE, INC.
231-346 TRAVERSECY MI TELNET WORLDWIDE, INC.