Local Calling Guide

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

Remotes:

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
240-334 6 Washington Zone 14 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-342 3 Ashton MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-06-26   
240-348 A Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-348 1 Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-348 5 Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-01-14   
240-348 6 Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-10-09   
240-377 0 Indian Head MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-03-03   
240-377 3 Indian Head MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-380 2 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-01-25   
240-380 3 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-01-25   
240-392 3 Washington Zone 5 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-01-02   
240-392 4 Washington Zone 5 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-01-02   
240-393 4 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2003-01-12   
240-396 1 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-398 3 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-04-03   
240-407 2 Washington Zone 16 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-425 4 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-428 2 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-04-16   
240-428 6 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-09-24   
240-434 A Leonardtown MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-434 4 Leonardtown MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-434 7 Leonardtown MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-449 3 Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-05-07   
240-449 8 Gaithersburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-05-07   
240-450 2 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-04-03   
240-455 3 Washington Zone 5 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-07   
240-455 4 Washington Zone 5 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2003-01-12   
240-455 5 Washington Zone 5 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-07   
240-466 5 Mechanicsville MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-12-01   
240-478 6 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-01-28   
240-482 8 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-13   
240-483 4 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2003-01-12   
240-489 2 Poolesville MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-03-05   
240-492 7 Washington Zone 5 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-08-28   
240-493 8 Washington Zone 6 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-13   
240-495 6 Washington Zone 4 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-07-04   
240-523 2 La Plata MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-07-15   
240-523 4 La Plata MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-03-02   
240-528 A Hughesville MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-528 4 Hughesville MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-03-02   
240-547 A Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-547 0 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-07-15   
240-547 1 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-07-15   
240-547 2 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-547 3 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-07-15   
240-547 4 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-547 5 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-07-15   
240-560 4 Washington Zone 12 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-15   
240-560 5 Washington Zone 12 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-06-19   
240-561 7 Leonardtown MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2009-03-23   

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

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