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
443-939 6 Baltimore MD BLTMMDCH40Z  238   2004-05-06   
443-939 7 Baltimore MD BLTMMDCH40Z  238   2004-05-27   
443-939 8 Baltimore MD BLTMMDCH40Z  238   2004-05-27   
443-939 9 Baltimore MD BLTMMDCH40Z  238      
443-946 0 Parkville MD BLTMMDCH40Z  238   2020-04-06   
443-953 8 Salisbury MD SLBRMDSCXMD  242   2014-03-22   
443-953 9 Salisbury MD SLBRMDSCXMD  242   2014-03-22   
443-960 1 Glen Burnie MD BLTMMDCH40Z  238   2016-02-06   
443-960 2 Glen Burnie MD BLTMMDCH40Z  238   2016-02-06   
443-960 9 Glen Burnie MD BLTMMDCH40Z  238   2016-04-12   
443-962 4 Glen Burnie MD BLTMMDCH40Z  238   2008-02-04   
443-962 5 Glen Burnie MD BLTMMDCH40Z  238   2008-02-04   
443-962 8 Glen Burnie MD BLTMMDCH40Z  238   2008-04-21   
443-962 9 Glen Burnie MD BLTMMDCH40Z  238   2008-04-21   
443-968 1 Prince Frederick MD BLTMMDCH40Z  238   2003-01-24   
443-968 6 Prince Frederick MD BLTMMDCH40Z  238   2003-01-24   
443-969 5 Essex MD   238   2021-02-05   
443-972 0 Cambridge MD SLBRMDSCXMD  242   2016-04-12   
443-972 1 Cambridge MD SLBRMDSCXMD  242   2016-04-12   
443-978 1 Salisbury MD SLBRMDSCXMD  242   2016-07-14   
443-978 9 Salisbury MD SLBRMDSCXMD  242   2016-07-14   
443-983 A Baltimore MD BLTMMDCH40Z  238      
443-983 0 Baltimore MD   238      
443-983 1 Baltimore MD   238      
443-983 2 Baltimore MD   238      
443-983 3 Baltimore MD   238      
443-983 4 Baltimore MD   238      
443-983 5 Baltimore MD   238      
443-983 6 Baltimore MD   238      
443-983 7 Baltimore MD   238      
443-983 8 Baltimore MD   238      
443-983 9 Baltimore MD   238      
443-985 A Randallstown MD BLTMMDCH40Z  238      
443-985 0 Randallstown MD BLTMMDCH40Z  238      
443-985 1 Randallstown MD BLTMMDCH40Z  238      
443-985 2 Randallstown MD BLTMMDCH40Z  238   2011-08-08   
443-985 3 Randallstown MD BLTMMDCH40Z  238   2013-12-27   
443-985 4 Randallstown MD BLTMMDCH40Z  238   2014-09-21   
443-985 5 Randallstown MD BLTMMDCH40Z  238   2015-03-16   
443-985 6 Randallstown MD BLTMMDCH40Z  238      
443-985 7 Randallstown MD BLTMMDCH40Z  238   2008-10-12   
443-985 8 Randallstown MD BLTMMDCH40Z  238   2013-05-20   
443-985 9 Randallstown MD BLTMMDCH40Z  238      
443-998 1 Parkville MD BLTMMDCH40Z  238   2016-12-09   
540-206 0 Roanoke VA RONKVALKXRX  244   2010-04-08   
540-208 8 Harrisonburg VA HRBGVAXATMD  927   2014-05-30   
540-209 1 Harrisonburg VA HRBGVAXATMD  927   2005-06-30   
540-209 7 Harrisonburg VA HRBGVAXATMD  927   2008-06-26   
540-214 0 Harrisonburg VA HRBGVAXATMD  927   2014-10-05   
540-221 3 Waynesboro VA WYBOVAXA2MD  244   2012-01-20   

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

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