Local Calling Guide

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Washington Zone 5, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-836 5 WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2010-09-02   
301-836 6 WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2010-09-02   
301-836 7 TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-836 8 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-07-20   
301-836 9 HRNDVACKAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 236   2004-03-27   
301-883 A LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 0 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 1 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-02-26   
301-883 2 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 3 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 4 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 5 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 6 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 7 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 8 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 9 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-899 A TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-909 A WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-909 0 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-06-18   
301-909 1 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2015-11-18   
301-909 2 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-909 3 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-20   
301-909 4 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-04-23   
301-909 5 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-20   
301-909 6 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-909 7 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-909 8 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-20   
301-909 9 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-925 A LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-967 A STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
301-981 A LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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