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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
301-786 8 McCoole MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2014-03-24   
301-786 9 McCoole MD CSTWMDCRDS0  9212 VERIZON MARYLAND, INC. 240      
301-787 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-787 0 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-787 1 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-787 2 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-787 3 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-787 4 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-787 5 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-787 6 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-787 7 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-787 8 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-787 9 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-02-03   
301-788 A Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
301-789 A Washington Zone 4 MD CHCHMDBEPS0  2593 CORE COMMUNICATIONS, INC.- MD 236   2024-01-16   
301-789 0 Washington Zone 4 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2002-10-05   
301-789 1 Washington Zone 4 MD   829J PAETEC ITEL, LLC 236   2005-02-10   
301-789 2 Washington Zone 4 MD   829J PAETEC ITEL, LLC 236   2005-02-10   
301-789 3 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2008-02-15   
301-789 4 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-11-15   
301-789 5 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-04-20   
301-789 6 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-04-20   
301-789 7 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-04-20   
301-789 8 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-11-15   
301-789 9 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-02-15   
301-790 A Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-791 A Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-792 A Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-793 A Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-794 A Washington Zone 14 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-794 0 Washington Zone 14 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-794 1 Washington Zone 14 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-794 2 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-794 3 Washington Zone 14 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-794 4 Washington Zone 14 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-794 5 Washington Zone 14 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-794 6 Washington Zone 14 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-794 7 Washington Zone 14 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-794 8 Washington Zone 14 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-794 9 Washington Zone 14 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-795 A Washington Zone 10 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-795 0 Washington Zone 10 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-795 1 Washington Zone 10 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-795 2 Washington Zone 10 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-795 3 Washington Zone 10 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-795 4 Washington Zone 10 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2008-02-08   
301-795 5 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-11-15   
301-795 6 Washington Zone 10 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-795 7 Washington Zone 10 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-795 8 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-11-15   

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

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