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
410-622 9 Baltimore MD   238   2011-09-27   
410-637 9 Baltimore MD   238   2005-09-23   
410-649 9 Baltimore MD   238   2005-09-23   
410-662 3 Baltimore MD   238   2005-10-02   
410-684 9 Glen Burnie MD   238   2016-08-15   
410-689 5 Glen Burnie MD   238   2008-06-16   
410-689 8 Glen Burnie MD   238   2007-11-15   
410-690 5 Easton MD   242   2006-01-29   
410-694 1 Glen Burnie MD   238   2016-08-15   
410-699 A Chestertown MD SLBRMDSCXMD  242   2024-02-09   
410-699 0 Chestertown MD   242      
410-699 1 Chestertown MD   242      
410-699 2 Chestertown MD   242      
410-699 3 Chestertown MD   242      
410-699 5 Chestertown MD   242      
410-699 6 Chestertown MD   242      
410-699 7 Chestertown MD   242      
410-699 8 Chestertown MD   242      
410-710 A Baltimore MD BLTMMDCH40Z  238      
410-710 0 Baltimore MD   238   2006-01-07   
410-710 1 Baltimore MD   238   2006-01-07   
410-710 2 Baltimore MD   238   2006-01-07   
410-710 3 Baltimore MD   238   2006-01-07   
410-710 4 Baltimore MD   238   2006-01-07   
410-710 5 Baltimore MD   238   2006-01-07   
410-710 7 Baltimore MD   238   2006-02-03   
410-710 8 Baltimore MD   238   2006-02-03   
410-710 9 Baltimore MD   238   2005-11-24   
410-713 6 Salisbury MD   242   2004-02-17   
410-713 7 Salisbury MD   242   2004-02-17   
410-717 5 Elkridge MD   238   2011-09-19   
410-725 A Easton MD SLBRMDSCXMD  242   2024-02-09   
410-725 0 Easton MD   242      
410-725 1 Easton MD   242      
410-725 2 Easton MD   242   2007-08-22   
410-725 3 Easton MD   242   2007-08-22   
410-725 4 Easton MD   242      
410-725 5 Easton MD   242   2011-03-15   
410-725 6 Easton MD   242      
410-725 7 Easton MD   242   2004-07-11   
410-725 8 Easton MD   242   2007-08-22   
410-725 9 Easton MD   242      
410-762 8 Glen Burnie MD   238   2015-01-31   
410-762 9 Glen Burnie MD   238   2015-01-31   
410-776 1 Bel Air MD   238   2011-08-26   
410-776 4 Bel Air MD   238   2011-08-26   
410-776 5 Bel Air MD   238   2011-08-26   
410-776 8 Bel Air MD   238   2011-10-11   
410-776 9 Bel Air MD   238   2011-10-11   
410-779 8 Baltimore MD   238   2006-02-07   
410-793 9 Severna Park MD   238   2011-10-03   
410-800 1 Baltimore MD   238   2005-06-19   
410-800 3 Baltimore MD   238   2005-11-07   
410-800 5 Baltimore MD   238   2005-05-09   
410-800 6 Baltimore MD   238   2005-05-09   
410-800 9 Baltimore MD   238   2005-06-19   
410-805 A Baltimore MD BLTMMDCH40Z  238      
410-805 0 Baltimore MD   238   2011-10-27   
410-805 1 Baltimore MD   238   2011-10-27   
410-805 2 Baltimore MD   238   2011-10-27   
410-805 3 Baltimore MD   238   2011-10-27   
410-805 4 Baltimore MD   238   2011-10-27   
410-805 5 Baltimore MD   238   2011-10-27   
410-805 6 Baltimore MD   238   2011-10-27   
410-805 7 Baltimore MD   238   2011-10-27   
410-805 8 Baltimore MD   238   2011-10-27   
410-805 9 Baltimore MD   238   2011-10-27   
410-814 1 Baltimore MD   238   2005-12-23   
410-814 8 Baltimore MD   238   2006-02-03   
410-814 9 Baltimore MD   238   2006-02-03   
410-831 A Salisbury MD SLBRMDSCXMD  242      
410-831 0 Salisbury MD   242   2015-12-21   
410-831 1 Salisbury MD   242   2015-12-21   
410-831 8 Salisbury MD   242   2014-11-08   
410-831 9 Salisbury MD   242   2014-11-08   
410-845 A Salisbury MD SLBRMDSCXMD  242      
410-845 0 Salisbury MD   242      
410-845 1 Salisbury MD   242      
410-845 5 Salisbury MD   242   2006-08-12   
410-845 6 Salisbury MD   242   2005-03-07   
410-845 7 Salisbury MD   242   2005-03-07   
410-845 8 Salisbury MD   242   2004-04-19   
410-855 0 Glen Burnie MD   238   2016-08-15   
410-858 1 Annapolis MD   238   2006-02-03   
410-858 2 Annapolis MD   238   2006-02-03   
410-858 3 Annapolis MD   238   2006-02-19   
410-858 5 Annapolis MD   238   2011-08-19   
410-858 8 Annapolis MD   238   2005-07-02   
410-865 9 Glen Burnie MD   238   2008-07-17   
410-869 5 Catonsville MD   238   2021-12-09   
410-878 5 Baltimore MD   238   2005-06-19   
410-892 0 Glen Burnie MD   238   2016-08-15   
410-900 0 Baltimore MD   238   2005-02-25   
410-900 2 Baltimore MD   238   2005-02-25   
410-900 3 Baltimore MD   238   2005-06-06   
410-900 4 Baltimore MD   238   2005-01-19   
410-900 5 Baltimore MD   238   2005-01-19   
410-900 6 Baltimore MD   238   2005-01-21   
410-900 7 Baltimore MD   238   2005-01-21   
410-900 8 Baltimore MD   238   2005-07-16   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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