Local Calling Guide

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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
301-833 A Washington Zone 14 MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-833 0 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2004-03-26   
301-833 1 Washington Zone 14 MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2008-07-17   
301-833 2 Washington Zone 14 MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2008-07-17   
301-833 3 Washington Zone 14 MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2008-07-17   
301-833 4 Washington Zone 14 MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2008-07-17   
301-833 5 Washington Zone 14 MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2003-06-29   
301-833 6 Washington Zone 14 MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2003-06-29   
301-833 7 Washington Zone 14 MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2003-06-29   
301-833 8 Washington Zone 14 MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2003-06-29   
301-833 9 Washington Zone 14 MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2003-06-29   
301-834 A Brunswick MD BRWKMDBRRS0  9212 VERIZON MARYLAND, INC. 240      
301-834 0 Brunswick MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2004-03-28   
301-834 1 Brunswick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-09-12   
301-834 2 Brunswick MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2007-06-04   
301-834 3 Brunswick MD BRWKMDBRRS0  9212 VERIZON MARYLAND, INC. 240      
301-834 4 Brunswick MD BRWKMDBRRS0  9212 VERIZON MARYLAND, INC. 240      
301-834 5 Brunswick MD BRWKMDBRRS0  9212 VERIZON MARYLAND, INC. 240      
301-834 6 Brunswick MD BRWKMDBRRS0  9212 VERIZON MARYLAND, INC. 240      
301-834 7 Brunswick MD BRWKMDBRRS0  9212 VERIZON MARYLAND, INC. 240      
301-834 8 Brunswick MD BRWKMDBRRS0  9212 VERIZON MARYLAND, INC. 240      
301-834 9 Brunswick MD BRWKMDBRRS0  9212 VERIZON MARYLAND, INC. 240      
301-835 A Frederick MD HGTWMD534MD  197D VONAGE AMERICA LLC 240      
301-835 0 Frederick MD HGTWMD534MD  197D VONAGE AMERICA LLC 240   2019-01-18   
301-835 1 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-11-07   
301-835 2 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-11-07   
301-835 3 Frederick MD FRDRMDFR9MD  5562 METROPCS, INC. 240   2019-11-29   
301-835 4 Frederick MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2019-10-16   
301-835 5 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2019-03-13   
301-835 6 Frederick MD FRDRMDFRXAX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 240   2019-04-11   
301-835 7 Frederick MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2019-03-20   
301-835 8 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2019-01-19   
301-835 9 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2019-10-01   
301-836 A Washington Zone 5 MD TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-836 0 Washington Zone 5 MD   515J IP HORIZON LLC 236   2013-09-06   
301-836 1 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-01-21   
301-836 2 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2013-01-15   
301-836 3 Washington Zone 5 MD WASHDCCZDS1  4773 XO MARYLAND, LLC 236   2011-01-25   
301-836 4 Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236   2010-12-22   
301-836 5 Washington Zone 5 MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2010-09-02   
301-836 6 Washington Zone 5 MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2010-09-02   
301-836 7 Washington Zone 5 MD TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-836 8 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-07-20   
301-836 9 Washington Zone 5 MD HRNDVACKAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 236   2004-03-27   
301-837 A Washington Zone 13 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-837 0 Washington Zone 13 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-837 1 Washington Zone 13 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-837 2 Washington Zone 13 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-837 3 Washington Zone 13 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-837 4 Washington Zone 13 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2018-10-28   

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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