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OCN: 6119 LEVEL 3 COMMUNICATIONS, LLC - MD

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
240-377 0 Indian Head MD   236   2006-03-03   
240-377 3 Indian Head MD   236      
240-380 2 Washington Zone 2 MD   236   2008-01-25   
240-380 3 Washington Zone 2 MD   236   2008-01-25   
240-392 3 Washington Zone 5 MD   236   2006-01-02   
240-392 4 Washington Zone 5 MD   236   2006-01-02   
240-393 4 Washington Zone 3 MD   236   2003-01-12   
240-394 4 Mount Airy MD   240   2008-03-13   
240-396 A Washington Zone 2 MD   236      
240-396 1 Washington Zone 2 MD   236      
240-396 2 Washington Zone 2 MD   236      
240-396 5 Washington Zone 2 MD   236      
240-398 3 Washington Zone 3 MD   236   2005-04-03   
240-407 A Washington Zone 16 MD   236      
240-407 2 Washington Zone 16 MD   236      
240-415 6 Frederick MD   240   2011-09-01   
240-425 4 Washington Zone 2 MD   236      
240-428 2 Washington Zone 10 MD   236   2011-04-16   
240-428 6 Washington Zone 10 MD   236   2011-09-24   
240-434 A Leonardtown MD MCLNVA23DS4  236      
240-434 4 Leonardtown MD   236      
240-434 7 Leonardtown MD   236      
240-436 A Buckeystown MD FRDRMDFRXMD  240      
240-436 2 Buckeystown MD   240   2006-08-21   
240-436 3 Buckeystown MD   240   2010-11-20   
240-436 6 Buckeystown MD   240      
240-439 6 Frederick MD   240   2010-05-09   
240-439 8 Frederick MD   240   2009-08-13   
240-442 1 Oakland MD   240   2008-02-01   
240-449 3 Gaithersburg MD   236   2006-05-07   
240-449 8 Gaithersburg MD   236   2006-05-07   
240-450 2 Washington Zone 3 MD   236   2005-04-03   
240-452 4 Hagerstown MD   240   2011-01-07   
240-455 3 Washington Zone 5 MD   236   2005-01-07   
240-455 4 Washington Zone 5 MD   236   2003-01-12   
240-455 5 Washington Zone 5 MD   236   2005-01-07   
240-466 5 Mechanicsville MD   236   2012-12-01   
240-469 2 Hagerstown MD   240   2008-04-11   
240-478 6 Washington Zone 3 MD   236   2006-01-28   
240-482 8 Washington Zone 2 MD   236   2004-12-13   
240-483 4 Washington Zone 2 MD   236   2003-01-12   
240-489 2 Poolesville MD   236   2006-03-05   
240-491 A Washington Zone 3 MD   236      
240-491 5 Washington Zone 3 MD   236      
240-491 9 Washington Zone 3 MD   236      
240-492 7 Washington Zone 5 MD   236   2007-08-28   
240-493 8 Washington Zone 6 MD   236   2008-02-13   
240-495 6 Washington Zone 4 MD   236   2014-07-04   
240-512 7 Washington Zone 13 (Baltimore LATA) MD   238   2014-06-25   
240-513 2 Hagerstown MD   240   2013-11-17   
240-513 4 Hagerstown MD   240   2015-08-01   
240-523 2 La Plata MD   236   2005-07-15   
240-523 4 La Plata MD   236   2004-03-02   
240-528 A Hughesville MD MCLNVA23DS4  236      
240-528 4 Hughesville MD   236   2004-03-02   
240-547 A Laurel MD MCLNVA23DS4  236      
240-547 0 Laurel MD   236   2005-07-15   
240-547 1 Laurel MD   236   2005-07-15   
240-547 2 Laurel MD   236      
240-547 3 Laurel MD   236   2005-07-15   
240-547 4 Laurel MD   236      
240-547 5 Laurel MD   236   2005-07-15   
240-560 4 Washington Zone 12 MD   236   2008-02-15   
240-560 5 Washington Zone 12 MD   236   2007-06-19   
240-561 7 Leonardtown MD   236   2009-03-23   
240-565 0 Laurel (Baltimore LATA) MD   238   2006-08-11   
240-566 3 Frederick MD   240   2002-10-01   
240-566 4 Frederick MD   240   2002-10-01   
240-566 5 Frederick MD   240   2006-09-05   
240-569 7 Flintstone MD   240   2017-11-26   
240-573 A Washington Zone 15 MD   236      
240-573 7 Washington Zone 15 MD   236   2012-06-09   
240-574 1 Friendsville MD   240   2022-11-06   
240-575 A Frederick MD FRDRMDFRXMD  240      
240-575 1 Frederick MD   240   2007-07-03   
240-575 2 Frederick MD   240   2007-07-27   
240-575 3 Frederick MD   240   2007-07-27   
240-575 5 Frederick MD   240   2006-02-20   
240-575 6 Frederick MD   240   2006-02-20   
240-580 1 Cumberland MD   240   2005-04-15   
240-580 2 Cumberland MD   240   2005-04-15   
240-581 8 Laurel MD   236   2009-08-13   
240-591 4 Hagerstown MD   240   2020-03-15   
240-594 4 Bittinger MD   240   2020-02-16   
240-599 A Washington Zone 10 MD MCLNVA23DS4  236      
240-599 0 Washington Zone 10 MD   236      
240-599 1 Washington Zone 10 MD   236      
240-599 2 Washington Zone 10 MD   236      
240-599 3 Washington Zone 10 MD   236      
240-599 4 Washington Zone 10 MD   236      
240-599 7 Washington Zone 10 MD   236      
240-599 8 Washington Zone 10 MD   236      
240-607 A Waldorf MD   236      
240-607 5 Waldorf MD   236      
240-608 6 Frederick MD   240   2014-02-15   
240-614 4 Washington Zone 10 MD   236   2014-08-18   
240-616 1 Washington Zone 13 MD   236   2012-12-01   
240-617 7 Highfield MD   240   2016-10-27   
240-627 A Washington Zone 11 MD   236      
240-627 3 Washington Zone 11 MD   236      

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

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