Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-678 8 Parkville MD BLTMMDCH40Z  238   2015-11-27   
443-678 9 Parkville MD BLTMMDCH40Z  238   2015-11-27   
443-682 3 Baltimore MD BLTMMDCH40Z  238   2007-05-12   
443-682 4 Baltimore MD BLTMMDCH40Z  238   2007-05-12   
443-682 5 Baltimore MD BLTMMDCH40Z  238   2007-05-12   
443-683 4 Baltimore MD BLTMMDCH40Z  238   2007-09-09   
443-683 5 Baltimore MD BLTMMDCH40Z  238   2007-09-09   
443-683 6 Baltimore MD BLTMMDCH40Z  238   2007-09-09   
443-683 7 Baltimore MD BLTMMDCH40Z  238   2007-09-09   
443-683 9 Baltimore MD BLTMMDCH40Z  238   2008-04-08   
443-699 8 Annapolis MD BLTMMDCH40Z  238   2014-03-11   
443-699 9 Annapolis MD BLTMMDCH40Z  238   2014-03-11   
443-703 6 Baltimore MD BLTMMDCH40Z  238   2005-08-13   
443-703 8 Baltimore MD BLTMMDCH40Z  238   2005-08-13   
443-703 9 Baltimore MD BLTMMDCH40Z  238   2005-08-13   
443-707 0 Aberdeen MD BLTMMDCH40Z  236   2014-11-08   
443-707 5 Aberdeen MD BLTMMDCH40Z  236   2015-01-31   
443-707 6 Aberdeen MD BLTMMDCH40Z  236   2015-01-31   
443-707 7 Aberdeen MD BLTMMDCH40Z  236   2015-01-31   
443-707 8 Aberdeen MD BLTMMDCH40Z  236   2014-11-08   
443-707 9 Aberdeen MD BLTMMDCH40Z  236   2014-11-08   
443-708 6 Baltimore MD BLTMMDCH40Z  238   2008-04-08   
443-713 0 Glen Burnie MD BLTMMDCH40Z  238   2015-01-31   
443-713 5 Glen Burnie MD BLTMMDCH40Z  238   2016-07-14   
443-713 6 Glen Burnie MD BLTMMDCH40Z  238   2015-01-31   
443-713 7 Glen Burnie MD BLTMMDCH40Z  238   2014-09-21   
443-713 8 Glen Burnie MD BLTMMDCH40Z  238   2014-09-21   
443-713 9 Glen Burnie MD BLTMMDCH40Z  238   2014-09-21   
443-720 8 Aberdeen MD BLTMMDCH40Z  236   2013-07-09   
443-720 9 Aberdeen MD BLTMMDCH40Z  236   2013-07-09   
443-722 A Baltimore MD BLTMMDCH40Z  238      
443-730 3 Essex MD BLTMMDCH40Z  238   2015-08-14   
443-730 4 Essex MD BLTMMDCH40Z  238   2015-08-14   
443-739 A Baltimore MD BLTMMDCH40Z  238      
443-741 0 Columbia MD BLTMMDCH40Z  238   2011-08-08   
443-743 4 Baltimore MD BLTMMDCH40Z  238   2008-08-18   
443-743 5 Baltimore MD BLTMMDCH40Z  238   2008-08-18   
443-743 6 Baltimore MD BLTMMDCH40Z  238   2008-08-18   
443-743 7 Baltimore MD BLTMMDCH40Z  238   2008-08-18   
443-743 8 Baltimore MD BLTMMDCH40Z  238   2008-08-18   
443-759 1 Baltimore MD BLTMMDCH40Z  238   2008-04-08   
443-759 2 Baltimore MD BLTMMDCH40Z  238   2008-04-08   
443-760 0 Aberdeen MD BLTMMDCH40Z  236   2003-01-24   
443-760 1 Aberdeen MD BLTMMDCH40Z  236   2003-01-24   
443-760 2 Aberdeen MD BLTMMDCH40Z  236   2009-05-14   
443-760 5 Aberdeen MD BLTMMDCH40Z  236   2003-01-24   
443-760 6 Aberdeen MD BLTMMDCH40Z  236   2003-01-24   
443-760 7 Aberdeen MD BLTMMDCH40Z  236   2003-01-24   
443-760 8 Aberdeen MD BLTMMDCH40Z  236   2003-01-24   
443-761 A Towson MD BLTMMDCH40Z  238      

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Last updated: Sun, 07 Feb 2021 01:52:50 UTC

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