Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: MCLNVA23DS4

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Switch Switch name Switch type
WASHDCRKRSA  WASHINGTON  RS 

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-979 7 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-12-08   
301-979 9 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-12-08   
301-994 4 Lexington Park-Great Mills MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-07-04   
443-329 2 Waterloo (Washington DC LATA) MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-02-20   
443-329 4 Waterloo (Washington DC LATA) MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
540-242 A Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
540-242 0 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
540-242 3 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
540-242 4 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
540-242 7 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
540-242 8 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2008-01-29   
540-288 4 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-03-08   
540-300 4 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2011-10-24   
540-318 0 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-05-25   
540-318 1 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-07-06   
540-318 2 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2008-02-15   
540-318 5 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-09-05   
540-318 7 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-10-10   
540-446 0 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2005-01-05   
540-446 2 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2003-03-24   
540-446 5 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2005-01-05   
540-657 3 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2008-01-29   
540-699 5 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2015-06-27   
571-222 A Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-222 1 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-222 4 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-11-16   
571-222 6 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2012-03-03   
571-222 8 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-222 9 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-229 5 Manassas VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2005-09-12   
571-234 4 Washington Zone 19 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-234 5 Washington Zone 19 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-248 3 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2011-10-24   
571-248 7 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-12-09   
571-253 7 Washington Zone 17 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2014-01-27   
571-254 A Triangle VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-257 0 Washington Zone 8 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-09-18   
571-257 1 Washington Zone 8 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-09-27   
571-257 2 Washington Zone 8 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-10-08   
571-257 3 Washington Zone 8 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-10-26   
571-257 4 Washington Zone 8 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-11-09   
571-260 A Dale City VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-260 2 Dale City VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2016-07-31   
571-260 4 Dale City VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2017-06-30   
571-267 3 Herndon VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2012-09-03   
571-279 6 Washington Zone 19 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2014-11-12   
571-281 A Braddock VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-281 1 Braddock VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2004-12-28   
571-281 2 Braddock VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2004-12-28   
571-281 3 Braddock VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-07-15   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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