Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: MCLNVA23DS4

Remotes:

Switch Switch name Switch type
WASHDCRKRSA  WASHINGTON  RS 

<< 1 2 3 4 5 6 7 8 9 10 11 12 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-724 1 Washington Zone 6 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-13   
240-724 2 Washington Zone 6 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-04-03   
240-724 4 Washington Zone 6 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2003-01-12   
240-724 6 Washington Zone 6 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-04-03   
240-724 7 Washington Zone 6 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-05-05   
240-743 2 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-05-11   
240-743 3 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-08-27   
240-744 A Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-744 0 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-744 1 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-744 3 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-744 4 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-744 5 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-744 7 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-747 7 Washington Zone 11 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-07-03   
240-750 6 Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-09-17   
240-751 A Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-751 1 Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-751 4 Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2003-01-12   
240-751 9 Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-05-23   
240-752 A Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-752 0 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-752 6 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-03-24   
240-752 7 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-03-24   
240-752 8 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-11   
240-752 9 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-09-19   
240-753 A Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-753 6 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2013-03-09   
240-753 7 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2013-05-11   
240-754 A Waldorf MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-754 2 Waldorf MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-01-02   
240-762 4 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-07-18   
240-762 6 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-07-04   
240-764 4 Washington Zone 4 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2003-01-12   
240-766 8 Washington Zone 6 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-29   
240-767 4 Washington Zone 5 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-13   
240-767 6 Washington Zone 5 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-13   
240-770 0 Washington Zone 4 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-13   
240-770 2 Washington Zone 4 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-13   
240-776 A La Plata MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-776 8 La Plata MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-05-16   
240-780 A Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-780 3 Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-780 4 Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-786 A Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-786 0 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-786 3 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-786 4 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-786 9 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-787 A Brandywine MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-787 0 Brandywine MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-788 A Washington Zone 5 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-788 3 Washington Zone 5 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-788 4 Washington Zone 5 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-05-12   
240-790 A Washington Zone 13 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-790 0 Washington Zone 13 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-790 1 Washington Zone 13 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-790 3 Washington Zone 13 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-790 7 Washington Zone 13 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-794 A Lexington Park-Great Mills MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-794 1 Lexington Park-Great Mills MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-812 4 Poolesville MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-821 5 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-01-28   
240-821 6 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-01-28   
240-839 4 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2010-06-21   
240-839 6 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-04-26   
240-855 0 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-01   
240-880 A Washington Zone 11 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-880 1 Washington Zone 11 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-880 3 Washington Zone 11 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-880 4 Washington Zone 11 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-883 A Ashton MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-883 3 Ashton MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-892 A Washington Zone 15 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-892 3 Washington Zone 15 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-897 A Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-897 9 Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-898 A Washington Zone 4 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-898 2 Washington Zone 4 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-949 2 Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-04   
240-949 4 Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2003-08-23   
240-949 6 Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-04   
240-949 7 Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-05-05   
301-200 4 Indian Head MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-04-21   
301-234 6 Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-05-16   
301-256 0 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-11-16   
301-273 6 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2016-03-03   
301-298 5 Washington Zone 15 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-03-13   
301-328 1 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-12-14   
301-328 8 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-11-07   
301-355 0 Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2009-10-12   
301-355 2 Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-01-22   
301-358 A Washington Zone 15 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-358 0 Washington Zone 15 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-358 1 Washington Zone 15 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-358 2 Washington Zone 15 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-358 3 Washington Zone 15 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-04   
301-358 4 Washington Zone 15 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2003-03-24   
301-358 5 Washington Zone 15 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-04   
301-358 6 Washington Zone 15 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-09-29   

<< 1 2 3 4 5 6 7 8 9 10 11 12 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.