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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-747 7 Washington Zone 6 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-19   
301-747 8 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-02-07   
301-747 9 Washington Zone 6 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-748 A Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2024-02-09   
301-748 0 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-748 1 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 2 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 3 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 4 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 5 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 6 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 7 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 8 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 9 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-749 A Washington Zone 6 MD OXHLMDOHDS0  9212 VERIZON MARYLAND, INC. 236      
301-750 A Friendsville MD HGTWMD53DS0  2593 CORE COMMUNICATIONS, INC.- MD 240      
301-750 0 Friendsville MD FRDRMDFRPS0  2593 CORE COMMUNICATIONS, INC.- MD 240   2004-05-09   
301-750 1 Friendsville MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-09-29   
301-750 2 Friendsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2012-02-05   
301-750 3 Friendsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2014-10-04   
301-750 4 Friendsville MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2013-05-23   
301-750 5 Friendsville MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2007-08-31   
301-750 6 Friendsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-02-13   
301-750 7 Friendsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-08-10   
301-750 8 Friendsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-11-07   
301-750 9 Friendsville MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-09-29   
301-751 A Waldorf MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-752 A Waldorf MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-753 A Washington Zone 6 MD LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-753 0 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-09-29   
301-753 1 Washington Zone 6 MD LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-753 2 Washington Zone 6 MD LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-753 3 Washington Zone 6 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2020-12-03   
301-753 4 Washington Zone 6 MD LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-753 5 Washington Zone 6 MD LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-753 6 Washington Zone 6 MD LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-753 7 Washington Zone 6 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2017-04-14   
301-753 8 Washington Zone 6 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2020-12-03   
301-753 9 Washington Zone 6 MD LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-754 A Washington Zone 3 MD SLSPMDNWDS0  9212 VERIZON MARYLAND, INC. 236      
301-754 0 Washington Zone 3 MD SLSPMDNWDS0  9212 VERIZON MARYLAND, INC. 236      
301-754 1 Washington Zone 3 MD SLSPMDNWDS0  9212 VERIZON MARYLAND, INC. 236      
301-754 2 Washington Zone 3 MD SLSPMDNWDS0  9212 VERIZON MARYLAND, INC. 236      
301-754 3 Washington Zone 3 MD SLSPMDNWDS0  9212 VERIZON MARYLAND, INC. 236      
301-754 4 Washington Zone 3 MD SLSPMDNWDS0  9212 VERIZON MARYLAND, INC. 236      
301-754 5 Washington Zone 3 MD SLSPMDNWDS0  9212 VERIZON MARYLAND, INC. 236      
301-754 6 Washington Zone 3 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-10-23   
301-754 7 Washington Zone 3 MD SLSPMDNWDS0  9212 VERIZON MARYLAND, INC. 236      
301-754 8 Washington Zone 3 MD SLSPMDNWDS0  9212 VERIZON MARYLAND, INC. 236      
301-754 9 Washington Zone 3 MD SLSPMDNWDS0  9212 VERIZON MARYLAND, INC. 236      

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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