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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
301-861 5 Waldorf MD   829J PAETEC ITEL, LLC 236   2005-03-17   
301-861 6 Waldorf MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-07-02   
301-861 7 Waldorf MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-08-02   
301-861 8 Waldorf MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-09-01   
301-861 9 Waldorf MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-05-03   
301-862 A Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-862 0 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-862 1 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-862 2 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-862 3 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-862 4 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-862 5 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-862 6 Lexington Park-Great Mills MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-01   
301-862 7 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-862 8 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-862 9 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-863 A Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-864 A Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-865 A New Market MD NWMRMDNERS3  9212 VERIZON MARYLAND, INC. 240      
301-866 A Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-866 0 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-866 1 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-866 2 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-866 3 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-866 4 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-866 5 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-866 6 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-866 7 Lexington Park-Great Mills MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-866 9 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
301-867 A Washington Zone 14 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-867 0 Washington Zone 14 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-867 1 Washington Zone 14 MD OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2020-08-10   
301-867 2 Washington Zone 14 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-867 3 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-867 4 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-867 5 Washington Zone 14 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-14   
301-867 6 Washington Zone 14 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-867 7 Washington Zone 14 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-14   
301-867 8 Washington Zone 14 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-867 9 Washington Zone 14 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-868 A Washington Zone 16 MD CLTNMDCLDS0  9212 VERIZON MARYLAND, INC. 236      
301-869 A Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-870 A Washington Zone 6 MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-871 A Washington Zone 11 MD SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      
301-872 A Ridge MD RIDGMDRIRS0  9212 VERIZON MARYLAND, INC. 236      
301-872 0 Ridge MD RIDGMDRIRS0  9212 VERIZON MARYLAND, INC. 236      
301-872 1 Ridge MD WASHDC127MD  073H TELNYX LLC 236   2023-06-18   
301-872 2 Ridge MD RIDGMDRIRS0  9212 VERIZON MARYLAND, INC. 236      
301-872 3 Ridge MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-06-17   
301-872 4 Ridge MD RIDGMDRIRS0  9212 VERIZON MARYLAND, INC. 236      

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

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