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NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-861 A Shelby MI SHLBMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-862 A Hoxeyville MI MSCKMIXIRS0  0704 ACE TEL. CO. OF MICHIGAN, INC. 348      
231-864 A Bear Lake MI BRLKMIXIDS0  0702 BRIGHTSPEED OF MICHIGAN, LLC 348      
231-865 A Fruitport MI FRPRMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-866 A Suttons Bay MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-867 A Chippewa Lake MI CHLKMIXIDS0  0671 BRIGHTSPEED OF CENTRAL MICHIGAN, INC 348      
231-869 A Pentwater MI PNTWMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-871 A Beulah MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-872 A Reed City MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-873 A Hart MI HARTMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-874 A Wolverine MI GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-875 A Fruitport MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348      
231-876 A Cadillac MI CDLCMIMNDS0  9323 MICHIGAN BELL TEL CO 348      
231-877 A Northport MI GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-878 A Cadillac MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-879 A Fife Lake MI FFLKMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-880 A Muskegon MI MSKGMIXKKMD  622J SKYE TELECOM LLC DBA SKYETEL 348      
231-881 A Petoskey MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-882 A Beulah MI BELHMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-883 A Traverse City MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-884 A Cadillac MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-885 A Mesick MI MSCKMIXIRS0  0704 ACE TEL. CO. OF MICHIGAN, INC. 348      
231-886 A Kalkaska MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-887 A Manistee MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-888 A Twin Lake MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-889 A Onekama MI ONKMMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-890 A Traverse City MI TRCYMIMNDS1  9323 MICHIGAN BELL TEL CO 348      
231-893 A Whitehall MI WHTHMIXGDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-894 A Whitehall MI WHTHMIXGDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-898 A Carr MI CARRMIXADS0  0683 CARR TEL. CO. 348      
231-899 A Northport MI GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-900 A Muskegon MI BRSPMI095MD  965H FRACTEL, LLC 348      
231-902 A Hart MI   817J INTERACTIVE SERVICES NETWORK, INC. 348      
231-903 A Muskegon MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-907 A Ludington MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-908 A McBain MI GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-912 A Reed City MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-916 A Mancelona MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-920 A Cadillac MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-922 A Traverse City MI TRCYMIMNDS1  9323 MICHIGAN BELL TEL CO 348      
231-923 A Hart MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-924 A Fremont MI FRMTMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-925 A Scottville MI GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-928 A Fremont MI FRMTMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-929 A Traverse City MI TRCYMIMNDS1  9323 MICHIGAN BELL TEL CO 348      
231-930 A Beulah MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348      
231-932 A Traverse City MI TRCYMIMNDS1  9323 MICHIGAN BELL TEL CO 348      
231-933 A Traverse City MI TRCYMIMNDS1  9323 MICHIGAN BELL TEL CO 348      
231-935 A Traverse City MI TRCYMIMNDS1  9323 MICHIGAN BELL TEL CO 348      
231-936 A Scottville MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348      
231-937 A Howard City MI HWCYMIXGDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-938 A Traverse City MI ACMEMIMNDS0  9323 MICHIGAN BELL TEL CO 348      
231-939 A Petoskey MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-941 A Traverse City MI TRCYMIMNDS1  9323 MICHIGAN BELL TEL CO 348      
231-942 A Cadillac MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-943 A Traverse City MI GRWNMIMNRS0  9323 MICHIGAN BELL TEL CO 348      
231-944 A Traverse City MI PTSKMICSDS0  9245 CYNERGYCOMM.NET, INC. - MI 348      
231-946 A Traverse City MI TRCYMIMNDS1  9323 MICHIGAN BELL TEL CO 348      
231-947 A Traverse City MI TRCYMIMNDS1  9323 MICHIGAN BELL TEL CO 348      
231-955 A Muskegon MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-963 A McBain MI BRSPMI097MD  516J TON80 COMMUNICATIONS, LLC 348      
231-966 A Freesoil MI BRSPMI097MD  516J TON80 COMMUNICATIONS, LLC 348      
231-968 A Cadillac MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348      
231-970 A Bear Lake MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-972 A Mecosta MI MCSTMIXIDS0  0671 BRIGHTSPEED OF CENTRAL MICHIGAN, INC 348      
231-974 A Grant MI GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-977 A Mackinaw City MI BRSPMI095MD  965H FRACTEL, LLC 348      
231-981 A Whitehall MI WHTHMIXGDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-994 A Lake Leelanau MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348      
231-995 A Traverse City MI TRCYMIMNDS1  9323 MICHIGAN BELL TEL CO 348      
231-999 A Central Lake MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      

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Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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