Local Calling Guide

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Washington Zone 14, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-833 A WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-833 0   2593 CORE COMMUNICATIONS, INC.- MD 236   2004-03-26   
301-833 1   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2008-07-17   
301-833 2   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2008-07-17   
301-833 3   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2008-07-17   
301-833 4   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2008-07-17   
301-833 5   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2003-06-29   
301-833 6   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2003-06-29   
301-833 7   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2003-06-29   
301-833 8   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2003-06-29   
301-833 9   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2003-06-29   
301-850 A MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-850 0   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-04-27   
301-850 1   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-19   
301-850 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-19   
301-850 3   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-04-19   
301-850 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2002-06-04   
301-850 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-10-04   
301-850 6   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-04-21   
301-850 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-08-10   
301-850 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2017-02-04   
301-850 9   1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 236   2004-03-27   
301-860 A BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-860 0   9212 VERIZON MARYLAND, INC. 236      
301-860 1   9212 VERIZON MARYLAND, INC. 236      
301-860 2   5562 METROPCS, INC. 236   2016-12-25   
301-860 3   9212 VERIZON MARYLAND, INC. 236      
301-860 4   9212 VERIZON MARYLAND, INC. 236      
301-860 5   9212 VERIZON MARYLAND, INC. 236      
301-860 6   9212 VERIZON MARYLAND, INC. 236      
301-860 7   5562 METROPCS, INC. 236   2015-02-05   
301-860 8   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-860 9   5562 METROPCS, INC. 236   2018-04-16   
301-867 A WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-867 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-867 1   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2020-08-10   
301-867 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-867 3   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-867 4   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-867 5   876D ONVOY, LLC - MD 236   2016-03-14   
301-867 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-867 7   876D ONVOY, LLC - MD 236   2016-03-14   
301-867 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-867 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      

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Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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