| Exchange | 
      Rate Center | 
      State | 
      Operating Company | 
    
      
        | 231-448  | 
        ST JAMES | 
        MI | 
        ISLAND TELEPHONE CO. | 
      
      
        | 231-450  | 
        HESPERIA | 
        MI | 
        DOBSON CELLULAR SYSTEMS, INC. | 
      
      
        | 231-452  | 
        NEWAYGO | 
        MI | 
        LUCRE, INC. | 
      
      
        | 231-457  | 
        MUSKEGON | 
        MI | 
        ACD TELECOM, INC. - MI | 
      
      
        | 231-459  | 
        BOYNE CITY | 
        MI | 
        LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI | 
      
      
        | 231-460  | 
        BIG RAPIDS | 
        MI | 
        LUCRE, INC. | 
      
      
        | 231-462  | 
        FOUNTAIN | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-463  | 
        TRAVERSECY | 
        MI | 
        ALLTEL COMMUNICATIONS, INC. - MI | 
      
      
        | 231-464  | 
        FREESOIL | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-465  | 
        REED CITY | 
        MI | 
        CENTENNIAL MICHIANA LICENSE COMPANY LLC | 
      
      
        | 231-468  | 
        CADILLAC | 
        MI | 
        SPRINT SPECTRUM L.P.- MI | 
      
      
        | 231-477  | 
        BRETHREN | 
        MI | 
        KALEVA TELEPHONE CO. | 
      
      
        | 231-480  | 
        LUDINGTON | 
        MI | 
        LEVEL 3 COMMUNICATIONS, LLC - MI | 
      
      
        | 231-482  | 
        BOYNE CITY | 
        MI | 
        LUCRE, INC. | 
      
      
        | 231-486  | 
        TRAVERSECY | 
        MI | 
        BROOKS FIBER COMMUNICATIONS - MICHIGAN | 
      
      
        | 231-487  | 
        PETOSKEY | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-488  | 
        MANISTEE | 
        MI | 
        LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI | 
      
      
        | 231-492  | 
        TRAVERSECY | 
        MI | 
        ALLTEL COMMUNICATIONS, INC. - MI | 
      
      
        | 231-494  | 
        BIG RAPIDS | 
        MI | 
        AMERICAN MESSAGING (AM), INC. | 
      
      
        | 231-498  | 
        ELK RAPIDS | 
        MI | 
        LEVEL 3 COMMUNICATIONS, LLC - MI | 
      
      
        | 231-499  | 
        TRAVERSECY | 
        MI | 
        ALLTEL COMMUNICATIONS, INC. - MI | 
      
      
        | 231-508  | 
        ONEKAMA | 
        MI | 
        KALEVA TELEPHONE CO. | 
      
      
        | 231-509  | 
        BALDWIN | 
        MI | 
        ARCH WIRELESS HOLDINGS, INC. | 
      
      
        | 231-510  | 
        MANISTEE | 
        MI | 
        DOBSON CELLULAR SYSTEMS, INC. | 
      
      
        | 231-511  | 
         | 
        MI | 
         | 
      
      
        | 231-512  | 
        TRAVERSECY | 
        MI | 
        AMERICAN MESSAGING (AM), INC. | 
      
      
        | 231-514  | 
        CADILLAC | 
        MI | 
        AMERICAN MESSAGING (AM), INC. | 
      
      
        | 231-515  | 
        EVART | 
        MI | 
        ACD TELECOM, INC. - MI | 
      
      
        | 231-516  | 
        PETOSKEY | 
        MI | 
        AMERICAN MESSAGING (AM), INC. | 
      
      
        | 231-518  | 
        KALKASKA | 
        MI | 
        LEVEL 3 COMMUNICATIONS, LLC - MI | 
      
      
        | 231-519  | 
        NEWAYGO | 
        MI | 
        ALLTEL COMMUNICATIONS, INC. - MI | 
      
      
        | 231-520  | 
        CHARLEVOIX | 
        MI | 
        LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI | 
      
      
        | 231-522  | 
        LUTHER | 
        MI | 
        LUCRE, INC. | 
      
      
        | 231-525  | 
        WOLVERINE | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-526  | 
        HARBOR SPG | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-527  | 
        BIG RAPIDS | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-529  | 
        BRUTUS | 
        MI | 
        CENTURYTEL OF MICHIGAN, INC. | 
      
      
        | 231-532  | 
        KALKASKA | 
        MI | 
        AMERICAN MESSAGING (AM), INC. | 
      
      
        | 231-533  | 
        BELLAIRE | 
        MI | 
        VERIZON NORTH INC.-MI | 
      
      
        | 231-534  | 
        TRAVERSECY | 
        MI | 
        AT&T LOCAL | 
      
      
        | 231-535  | 
        WALLOON LK | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-536  | 
        EASTJORDAN | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-537  | 
        LEVERING | 
        MI | 
        CENTURYTEL OF MICHIGAN, INC. | 
      
      
        | 231-538  | 
        FREMONT | 
        MI | 
        LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI | 
      
      
        | 231-539  | 
        PELLSTON | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-543  | 
        LE ROY | 
        MI | 
        LUCRE, INC. | 
      
      
        | 231-544  | 
        CENTRAL LK | 
        MI | 
        VERIZON NORTH INC.-MI | 
      
      
        | 231-546  | 
        ELMIRA | 
        MI | 
        CENTURYTEL OF MICHIGAN, INC. | 
      
      
        | 231-547  | 
        CHARLEVOIX | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-548  | 
        ALANSON | 
        MI | 
        CENTURYTEL OF MICHIGAN, INC. | 
      
      
        | 231-549  | 
        BOYNEFALLS | 
        MI | 
        CENTURYTEL OF MICHIGAN, INC. | 
      
      
        | 231-555  | 
        GDRPBL1JB | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-556  | 
        CHARLEVOIX | 
        MI | 
        LUCRE, INC. | 
      
      
        | 231-557  | 
        MUSKEGON | 
        MI | 
        CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 
      
      
        | 231-563  | 
        MUSKEGON | 
        MI | 
        LUCRE, INC. | 
      
      
        | 231-564  | 
        KALKASKA | 
        MI | 
        DOBSON CELLULAR SYSTEMS, INC. | 
      
      
        | 231-568  | 
        TRAVERSECY | 
        MI | 
        LUCRE, INC. | 
      
      
        | 231-569  | 
        PETOSKEY | 
        MI | 
        AMERICAN MESSAGING (AM), INC. | 
      
      
        | 231-570  | 
        FIFE LAKE | 
        MI | 
        DOBSON CELLULAR SYSTEMS, INC. | 
      
      
        | 231-571  | 
        MUSKEGON | 
        MI | 
        VERIZON NORTH INC.-MI | 
      
      
        | 231-577  | 
        CADILLAC | 
        MI | 
        LEVEL 3 COMMUNICATIONS, LLC - MI | 
      
      
        | 231-578  | 
        MUSKEGON | 
        MI | 
        NEXTEL COMMUNICATIONS, INC. | 
      
      
        | 231-580  | 
        BIG RAPIDS | 
        MI | 
        SPRINT SPECTRUM L.P.- MI | 
      
      
        | 231-582  | 
        BOYNE CITY | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-583  | 
        LUDINGTON | 
        MI | 
        LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI | 
      
      
        | 231-584  | 
        ALBA | 
        MI | 
        PIGEON TELEPHONE CO. | 
      
      
        | 231-585  | 
        LAKE NORTH | 
        MI | 
        PIGEON TELEPHONE CO. | 
      
      
        | 231-587  | 
        MANCELONA | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-588  | 
        ELLSWORTH | 
        MI | 
        VERIZON NORTH INC.-MI | 
      
      
        | 231-590  | 
        TRAVERSECY | 
        MI | 
        ALLTEL COMMUNICATIONS, INC. - MI | 
      
      
        | 231-591  | 
        BIG RAPIDS | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-592  | 
        BIG RAPIDS | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-593  | 
        CADILLAC | 
        MI | 
        ARCH WIRELESS HOLDINGS, INC. | 
      
      
        | 231-594  | 
        HART | 
        MI | 
        LUCRE, INC. | 
      
      
        | 231-596  | 
        HARBOR SPG | 
        MI | 
        ARCH WIRELESS HOLDINGS, INC. | 
      
      
        | 231-597  | 
        CHEBOYGAN | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-598  | 
        BIG RAPIDS | 
        MI | 
        CENTENNIAL MICHIANA LICENSE COMPANY LLC | 
      
      
        | 231-599  | 
        EASTPORT | 
        MI | 
        VERIZON NORTH INC.-MI | 
      
      
        | 231-604  | 
        KALKASKA | 
        MI | 
        ARCH WIRELESS HOLDINGS, INC. | 
      
      
        | 231-605  | 
        NEWAYGO | 
        MI | 
        ARCH WIRELESS HOLDINGS, INC. | 
      
      
        | 231-606  | 
        BIG RAPIDS | 
        MI | 
        ARCH WIRELESS HOLDINGS, INC. | 
      
      
        | 231-607  | 
        CHEBOYGAN | 
        MI | 
        ARCH WIRELESS HOLDINGS, INC. | 
      
      
        | 231-608  | 
        FRANKFORT | 
        MI | 
        ARCH WIRELESS HOLDINGS, INC. | 
      
      
        | 231-611  | 
         | 
        MI | 
         | 
      
      
        | 231-613  | 
        SCOTTVILLE | 
        MI | 
        CARR TELEPHONE CO. | 
      
      
        | 231-614  | 
        PENTWATER | 
        MI | 
        LUCRE, INC. | 
      
      
        | 231-615  | 
        CHEBOYGAN | 
        MI | 
        AMERICAN MESSAGING (AM), INC. | 
      
      
        | 231-620  | 
        TRAVERSECY | 
        MI | 
        DOBSON CELLULAR SYSTEMS, INC. | 
      
      
        | 231-622  | 
        PETOSKEY | 
        MI | 
        LEVEL 3 COMMUNICATIONS, LLC - MI | 
      
      
        | 231-623  | 
        WOLVERINE | 
        MI | 
        LUCRE, INC. | 
      
      
        | 231-624  | 
        KALKASKA | 
        MI | 
        NEXTEL COMMUNICATIONS, INC. | 
      
      
        | 231-625  | 
        CHEBOYGAN | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-627  | 
        CHEBOYGAN | 
        MI | 
        AMERITECH MICHIGAN | 
      
      
        | 231-628  | 
        MANISTEE | 
        MI | 
        AMERICAN MESSAGING (AM), INC. | 
      
      
        | 231-629  | 
        BIG RAPIDS | 
        MI | 
        NEXTEL COMMUNICATIONS, INC. | 
      
      
        | 231-631  | 
        TRAVERSECY | 
        MI | 
        ALLTEL COMMUNICATIONS, INC. - MI | 
      
      
        | 231-632  | 
        TRAVERSECY | 
        MI | 
        DOBSON CELLULAR SYSTEMS, INC. | 
      
      
        | 231-633  | 
        TRAVERSECY | 
        MI | 
        DOBSON CELLULAR SYSTEMS, INC. | 
      
      
        | 231-634  | 
        BOIS BLANC | 
        MI | 
        ISLAND TELEPHONE CO. | 
      
      
        | 231-635  | 
        MACKINAWCY | 
        MI | 
        LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC.-MI |