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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
301-764 8 Waldorf MD   515J IP HORIZON LLC 236   2019-04-26   
301-764 9 Waldorf MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-07-30   
301-765 A Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 0 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 1 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 2 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 3 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 4 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-11-15   
301-765 5 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 6 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 7 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 8 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 9 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-766 A Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-767 A Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 0 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 1 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 2 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 3 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 4 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 5 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-01-13   
301-767 6 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-04-09   
301-767 7 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-04-09   
301-767 8 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 9 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-768 A Washington Zone 3 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-768 0 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-08-16   
301-768 1 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-12-28   
301-768 2 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-06-25   
301-768 3 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-08-14   
301-768 4 Washington Zone 3 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-768 5 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-01-07   
301-768 6 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-09-03   
301-768 7 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-02-02   
301-768 8 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-02-02   
301-768 9 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-06-25   
301-769 A Leonardtown MD MLTWMDMLRS0  9212 VERIZON MARYLAND, INC. 236      
301-769 0 Leonardtown MD LARLMDLR3MD  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 236   2003-12-25   
301-769 1 Leonardtown MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-01-11   
301-769 2 Leonardtown MD MLTWMDMLRS0  9212 VERIZON MARYLAND, INC. 236      
301-769 3 Leonardtown MD MLTWMDMLRS0  9212 VERIZON MARYLAND, INC. 236      
301-769 4 Leonardtown MD MLTWMDMLRS0  9212 VERIZON MARYLAND, INC. 236      
301-769 5 Leonardtown MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2005-08-15   
301-769 6 Leonardtown MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2005-08-15   
301-769 7 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-08-15   
301-769 8 Leonardtown MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-01-11   
301-769 9 Leonardtown MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2016-03-11   
301-770 A Washington Zone 11 MD RKVLMDMRDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 A Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 0 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2014-09-01   
301-771 1 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2015-05-19   
301-771 2 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 3 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 4 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 5 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 6 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 7 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 8 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 9 Washington Zone 2 MD   515J IP HORIZON LLC 236   2016-05-31   
301-772 A Washington Zone 4 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-773 A Washington Zone 4 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-774 A Ashton MD OLNYMDOKRP0  9212 VERIZON MARYLAND, INC. 236      
301-775 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-776 A Laurel MD LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
301-777 A Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 0 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 1 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 2 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 3 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 4 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 5 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 6 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240   2011-02-13   
301-777 7 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 8 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 9 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-778 A Washington Zone 5 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-778 0 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-10-12   
301-778 1 Washington Zone 5 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-778 2 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2008-10-05   
301-778 3 Washington Zone 5 MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2008-10-10   
301-778 4 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-10-28   
301-778 5 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-07-15   
301-778 6 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2012-04-05   
301-778 7 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2007-10-22   
301-778 8 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-10-28   
301-778 9 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-10-12   
301-779 A Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 A Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 0 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 1 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 2 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 3 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 4 Washington Zone 15 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2017-07-12   
301-780 5 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 6 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 7 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 8 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 9 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-781 A Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
301-781 0 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-18   

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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