Local Calling Guide

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Washington Zone 13, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
240-228 A LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
240-228 0   9212 VERIZON MARYLAND, INC. 236      
240-228 1   9212 VERIZON MARYLAND, INC. 236   2002-06-25   
240-228 2   9212 VERIZON MARYLAND, INC. 236   2003-02-15   
240-228 3   9212 VERIZON MARYLAND, INC. 236      
240-228 4   9212 VERIZON MARYLAND, INC. 236      
240-228 5   9212 VERIZON MARYLAND, INC. 236      
240-228 6   9212 VERIZON MARYLAND, INC. 236      
240-228 7   9212 VERIZON MARYLAND, INC. 236      
240-228 8   9212 VERIZON MARYLAND, INC. 236      
240-228 9   9212 VERIZON MARYLAND, INC. 236   2003-02-15   
240-241 A LNHMMDADDS0  8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-241 0   071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-05-01   
240-241 1   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
240-241 2   5562 METRO PCS, INC. 236   2013-06-16   
240-241 3   5562 METRO PCS, INC. 236   2013-06-16   
240-241 4   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2014-06-25   
240-241 5   4773 XO MARYLAND, LLC 236   2007-07-09   
240-241 6   4773 XO MARYLAND, LLC 236   2007-07-09   
240-241 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-12-05   
240-241 8   8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-241 9   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
240-297 A RSTNVA91RS0  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-297 0   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-29   
240-297 1   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-29   
240-297 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2013-03-17   
240-297 3   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-05   
240-297 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-297 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-05   
240-297 6   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2010-06-21   
240-297 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-03-24   
240-297 8   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-10-23   
240-297 9   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2006-03-14   
240-373 A ODTNMDAUDS0  9212 VERIZON MARYLAND, INC. 236      
240-387 A WASJDCDBDS1  4820 CAVALIER EAST LLC - MD 236      
240-387 0   4820 CAVALIER EAST LLC - MD 236      
240-387 1   4820 CAVALIER EAST LLC - MD 236      
240-387 2   4820 CAVALIER EAST LLC - MD 236      
240-387 3   4820 CAVALIER EAST LLC - MD 236      
240-387 4   4820 CAVALIER EAST LLC - MD 236      
240-387 5   4820 CAVALIER EAST LLC - MD 236      
240-387 6   4773 XO MARYLAND, LLC 236   2007-02-22   
240-387 7   4773 XO MARYLAND, LLC 236   2007-02-22   
240-387 8   4820 CAVALIER EAST LLC - MD 236      
240-387 9   4820 CAVALIER EAST LLC - MD 236      
240-391 A WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 236      
240-391 0   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 236      
240-391 1   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 236      
240-391 2   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 236      
240-391 3   071F BANDWIDTH.COM CLEC, LLC - MD 236   2007-10-12   

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Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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