Local Calling Guide

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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-869 5 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2006-10-07   
443-869 6 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2009-09-10   
443-869 7 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2006-09-18   
443-869 8 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2006-09-18   
443-869 9 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2006-09-18   
443-870 A Pikesville MD LARLMDCC1MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-870 0 Pikesville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-10-10   
443-870 1 Pikesville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-10-10   
443-870 2 Pikesville MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-870 3 Pikesville MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2006-10-15   
443-870 4 Pikesville MD   876D ONVOY, LLC - MD 238   2014-12-31   
443-870 5 Pikesville MD   876D ONVOY, LLC - MD 238   2014-12-31   
443-870 6 Pikesville MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-870 7 Pikesville MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-870 8 Pikesville MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-870 9 Pikesville MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-871 A Annapolis MD   6664 SPRINT SPECTRUM L.P. 238      
443-872 A Baltimore MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-872 0 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-872 1 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-02-04   
443-872 2 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2003-09-22   
443-872 3 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2003-09-22   
443-872 4 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2003-09-22   
443-872 5 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2003-09-22   
443-872 6 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2003-06-26   
443-872 7 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2003-06-26   
443-872 8 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2003-06-26   
443-872 9 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-873 A Baltimore MD   876D ONVOY, LLC - MD 238      
443-873 0 Baltimore MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-14   
443-873 1 Baltimore MD   4716 PAETEC COMMUNICATIONS, INC. - MD 238   2010-06-03   
443-873 2 Baltimore MD   876D ONVOY, LLC - MD 238   2010-04-16   
443-873 3 Baltimore MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2013-04-03   
443-873 4 Baltimore MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2013-09-10   
443-873 5 Baltimore MD   4716 PAETEC COMMUNICATIONS, INC. - MD 238   2010-06-03   
443-873 6 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2013-08-07   
443-873 7 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2013-08-07   
443-873 8 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2013-08-07   
443-873 9 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2013-08-07   
443-874 A Baltimore MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-874 0 Baltimore MD   4773 XO MARYLAND, LLC 238      
443-874 1 Baltimore MD   4773 XO MARYLAND, LLC 238   2005-08-03   
443-874 2 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2004-06-12   
443-874 3 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2004-06-12   
443-874 4 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2004-06-12   
443-874 5 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2004-06-12   
443-874 6 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2004-06-12   
443-874 7 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2004-06-12   
443-874 8 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2004-06-12   
443-874 9 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      

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Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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