Local Calling Guide

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Washington Zone 15 (Baltimore LATA), MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
227-888 A BLTMMDCHYMD  530H WIDE VOICE, LLC - MD 238      
227-888 0   876D ONVOY, LLC - MD 238   2024-04-13   
227-888 2 BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2023-11-21   
227-888 4 BLTMMDCH42Z  624H ONVOY SPECTRUM, LLC 238   2024-01-14   
227-888 5 BLTMMDCH42Z  624H ONVOY SPECTRUM, LLC 238   2024-01-14   
227-888 7 BLTMMDCHYMD  530H WIDE VOICE, LLC - MD 238   2023-11-20   
227-888 8 BLTMMDCHYMD  530H WIDE VOICE, LLC - MD 238   2023-11-20   
240-759 A BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
240-759 0 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-03-10   
240-759 1 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-03-10   
240-759 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-22   
240-759 3 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-06-16   
240-759 4 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-01-17   
240-759 5 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-01-17   
240-759 6 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2022-10-27   
240-759 7 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-23   
240-759 9 BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238   2021-11-18   
240-763 A BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
240-763 0 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-11-30   
240-763 1 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-28   
240-763 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-28   
240-763 3 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-25   
240-763 4 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-25   
240-763 5 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2019-03-07   
240-763 6 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2019-06-19   
240-763 7 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2019-02-19   
240-763 8 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2019-02-19   
240-763 9 BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
301-327 A BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
301-327 0 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-09-01   
301-327 1 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-01-02   
301-327 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2015-07-26   
301-327 3 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2007-12-01   
301-327 4 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-17   
301-327 5 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-02-29   
301-327 6 BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2008-09-30   
301-327 7 BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2007-08-20   
301-327 8 BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2008-09-16   
301-327 9 BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2008-03-15   
301-494 A PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
301-494 0 PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
301-494 1 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-06-25   
301-494 2 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2015-03-27   
301-494 3 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-03-06   
301-494 4 BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2011-03-11   
301-494 5 BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2011-06-17   
301-494 6 BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
301-494 7 BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2011-06-17   
301-494 8 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-05   
301-494 9 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-05   

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

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