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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
301-444 9 Washington Zone 10 MD WASHDC127MD  073H TELNYX LLC 236   2020-01-28   
301-445 A Washington Zone 3 MD HYVLMDRIDS0  9212 VERIZON MARYLAND, INC. 236      
301-446 A Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-446 0 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-446 1 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-446 2 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-446 3 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-446 4 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-446 5 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-446 6 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-446 7 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-446 8 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-446 9 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-447 A Emmitsburg MD EMBGMDEMRS0  9212 VERIZON MARYLAND, INC. 240      
301-447 0 Emmitsburg MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2018-06-10   
301-447 1 Emmitsburg MD EMBGMDEMRS0  9212 VERIZON MARYLAND, INC. 240      
301-447 2 Emmitsburg MD EMBGMDEMRS0  9212 VERIZON MARYLAND, INC. 240      
301-447 3 Emmitsburg MD EMBGMDEMRS0  9212 VERIZON MARYLAND, INC. 240      
301-447 4 Emmitsburg MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2007-04-07   
301-447 5 Emmitsburg MD EMBGMDEMRS0  9212 VERIZON MARYLAND, INC. 240      
301-447 6 Emmitsburg MD EMBGMDEMRS0  9212 VERIZON MARYLAND, INC. 240      
301-447 7 Emmitsburg MD EMBGMDEMRS0  9212 VERIZON MARYLAND, INC. 240      
301-447 8 Emmitsburg MD EMBGMDEMRS0  9212 VERIZON MARYLAND, INC. 240   2007-12-07   
301-447 9 Emmitsburg MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-03-31   
301-448 A Washington Zone 3 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-448 0 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-03-04   
301-448 1 Washington Zone 3 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-448 2 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-04-01   
301-448 3 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2022-11-07   
301-448 4 Washington Zone 3 MD CHCHMDBE1MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236   2011-01-10   
301-448 5 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-09-20   
301-448 6 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-09-20   
301-448 7 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-11-01   
301-448 8 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-11-01   
301-448 9 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-12-02   
301-449 A Washington Zone 5 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-450 A Washington Zone 3 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-450 0 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2022-09-17   
301-450 1 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2022-09-17   
301-450 2 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2022-09-17   
301-450 3 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2022-09-17   
301-450 4 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2022-09-17   
301-450 5 Washington Zone 3 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-09-17   
301-450 6 Washington Zone 3 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-09-17   
301-450 7 Washington Zone 3 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-09-17   
301-450 8 Washington Zone 3 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-09-17   
301-450 9 Washington Zone 3 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2022-09-16   
301-451 A Washington Zone 2 MD BTHSMDRPDS0  9212 VERIZON MARYLAND, INC. 236      
301-452 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-453 A Kitzmiller MD KTZMMDKMRS0  9212 VERIZON MARYLAND, INC. 240      
301-453 0 Kitzmiller MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2004-03-28   
301-453 1 Kitzmiller MD CMLDMDCM2MD  836G SHENTEL COMMUNICATIONS, LLC. - MD 240   2012-07-14   
301-453 2 Kitzmiller MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2011-10-01   
301-453 3 Kitzmiller MD KTZMMDKMRS0  9212 VERIZON MARYLAND, INC. 240      
301-453 4 Kitzmiller MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-09-12   
301-453 5 Kitzmiller MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2014-07-12   
301-453 6 Kitzmiller MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-08-10   
301-453 7 Kitzmiller MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-11-07   
301-453 8 Kitzmiller MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-09-12   
301-453 9 Kitzmiller MD FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240   2016-11-12   
301-454 A Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-454 0 Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-454 1 Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-454 2 Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-454 3 Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-454 4 Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-454 5 Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-454 6 Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-454 7 Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-454 8 Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-454 9 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-12-09   
301-455 A Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 0 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 1 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 2 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 3 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 4 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 5 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 6 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 7 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 8 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 9 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-456 A Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-456 0 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-06-26   
301-456 1 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-456 2 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-456 3 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2012-10-01   
301-456 4 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2012-06-16   
301-456 5 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2012-06-16   
301-456 6 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2011-12-15   
301-456 7 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-06-05   
301-456 8 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-456 9 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2013-10-01   
301-457 A Washington Zone 3 MD SLSPMDSSDSS  9212 VERIZON MARYLAND, INC. 236      
301-458 A Washington Zone 4 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-458 0 Washington Zone 4 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2008-12-13   
301-458 1 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2015-09-05   
301-458 2 Washington Zone 4 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-458 3 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-02-29   
301-458 4 Washington Zone 4 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      

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Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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