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Detroit Zone 4, MI

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
313-750 8   490J DISH WIRELESS, LLC 340   2025-12-17   
313-750 9   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2024-07-06   
313-772 A DTRTMIUVDS0  9323 MICHIGAN BELL TEL CO 340      
313-772 0   5562 METROPCS, INC. 340   2006-08-13   
313-772 1   5562 METROPCS, INC. 340   2006-08-13   
313-772 2   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2004-09-17   
313-772 3   5562 METROPCS, INC. 340   2006-08-13   
313-772 4   961J WOW! INTERNET, CABLE AND PHONE 340   2005-06-09   
313-772 5   5562 METROPCS, INC. 340   2006-08-13   
313-772 6   9323 MICHIGAN BELL TEL CO 340      
313-772 7   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-772 8   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-772 9   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-793 A CMPTMIIFCM0  9748 AMERICAN MESSAGING SERVICES, LLC 340      
313-795 A CMPTMIIFCM0  9748 AMERICAN MESSAGING SERVICES, LLC 340      
313-796 A CMPTMIIFCM0  9748 AMERICAN MESSAGING SERVICES, LLC 340      
313-813 A CMPTMIIFCM0  9748 AMERICAN MESSAGING SERVICES, LLC 340      
313-814 A CMPTMIIFCM0  9748 AMERICAN MESSAGING SERVICES, LLC 340      
313-834 A DTRTMIHGDS0  9323 MICHIGAN BELL TEL CO 340      
313-835 A DTRTMIVTDS0  9323 MICHIGAN BELL TEL CO 340      
313-836 A DTRTMIVTDS0  9323 MICHIGAN BELL TEL CO 340      
313-837 A DTRTMIVTDS0  9323 MICHIGAN BELL TEL CO 340      
313-838 A DTRTMIVTDS0  9323 MICHIGAN BELL TEL CO 340      
313-855 A LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-855 0   543C ONVOY, LLCV - MI 340   2015-01-16   
313-855 1   543C ONVOY, LLCV - MI 340   2015-01-16   
313-855 2   543C ONVOY, LLCV - MI 340   2015-01-16   
313-855 3   543C ONVOY, LLCV - MI 340   2015-01-16   
313-855 4   543C ONVOY, LLCV - MI 340   2015-01-16   
313-855 5   991E BANDWIDTH.COM CLEC, LLC - MI 340   2015-03-02   
313-855 6   516C AT&T CORP. 340   2015-03-06   
313-855 7   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-01-08   
313-855 8   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-01-08   
313-855 9   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-01-08   
313-861 A DTRTMIUVDS0  9323 MICHIGAN BELL TEL CO 340      
313-862 A DTRTMIUVDS0  9323 MICHIGAN BELL TEL CO 340      
313-863 A DTRTMIUVDS0  9323 MICHIGAN BELL TEL CO 340      
313-864 A DTRTMIUVDS0  9323 MICHIGAN BELL TEL CO 340      
313-915 A SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-915 0   991E BANDWIDTH.COM CLEC, LLC - MI 340   2009-03-07   
313-915 1   5562 METROPCS, INC. 340   2006-08-13   
313-915 2   543C ONVOY, LLCV - MI 340   2008-04-27   
313-915 3   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2005-04-15   
313-915 4   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2003-01-12   
313-915 5   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2005-04-15   
313-915 6   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2010-03-30   
313-915 7   5562 METROPCS, INC. 340   2006-08-13   
313-915 8   5562 METROPCS, INC. 340   2006-08-13   
313-915 9   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-927 A DTRTMIUVDS0  9323 MICHIGAN BELL TEL CO 340      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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