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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
240-513 4 Hagerstown MD FRDRMDFRXMD  240   2015-08-01   
240-523 2 La Plata MD MCLNVA23DS4  236   2005-07-15   
240-523 4 La Plata MD MCLNVA23DS4  236   2004-03-02   
240-528 A Hughesville MD MCLNVA23DS4  236      
240-528 4 Hughesville MD MCLNVA23DS4  236   2004-03-02   
240-547 A Laurel MD MCLNVA23DS4  236      
240-547 0 Laurel MD MCLNVA23DS4  236   2005-07-15   
240-547 1 Laurel MD MCLNVA23DS4  236   2005-07-15   
240-547 2 Laurel MD MCLNVA23DS4  236      
240-547 3 Laurel MD MCLNVA23DS4  236   2005-07-15   
240-547 4 Laurel MD MCLNVA23DS4  236      
240-547 5 Laurel MD MCLNVA23DS4  236   2005-07-15   
240-560 4 Washington Zone 12 MD MCLNVA23DS4  236   2008-02-15   
240-560 5 Washington Zone 12 MD MCLNVA23DS4  236   2007-06-19   
240-561 7 Leonardtown MD MCLNVA23DS4  236   2009-03-23   
240-565 0 Laurel (Baltimore LATA) MD BLTMMDSN6MD  238   2006-08-11   
240-566 3 Frederick MD FRDRMDFRXMD  240   2002-10-01   
240-566 4 Frederick MD FRDRMDFRXMD  240   2002-10-01   
240-566 5 Frederick MD FRDRMDFRXMD  240   2006-09-05   
240-569 7 Flintstone MD FRDRMDFRXMD  240   2017-11-26   
240-573 A Washington Zone 15 MD   236      
240-573 7 Washington Zone 15 MD MCLNVA23DS4  236   2012-06-09   
240-574 1 Friendsville MD FRDRMDFRXMD  240   2022-11-06   
240-575 A Frederick MD FRDRMDFRXMD  240      
240-575 1 Frederick MD FRDRMDFRXMD  240   2007-07-03   
240-575 2 Frederick MD FRDRMDFRXMD  240   2007-07-27   
240-575 3 Frederick MD FRDRMDFRXMD  240   2007-07-27   
240-575 5 Frederick MD FRDRMDFRXMD  240   2006-02-20   
240-575 6 Frederick MD FRDRMDFRXMD  240   2006-02-20   
240-580 1 Cumberland MD FRDRMDFRXMD  240   2005-04-15   
240-580 2 Cumberland MD FRDRMDFRXMD  240   2005-04-15   
240-581 8 Laurel MD MCLNVA23DS4  236   2009-08-13   
240-591 4 Hagerstown MD FRDRMDFRXMD  240   2020-03-15   
240-594 4 Bittinger MD FRDRMDFRXMD  240   2020-02-16   
240-599 A Washington Zone 10 MD MCLNVA23DS4  236      
240-599 0 Washington Zone 10 MD MCLNVA23DS4  236      
240-599 1 Washington Zone 10 MD MCLNVA23DS4  236      
240-599 2 Washington Zone 10 MD MCLNVA23DS4  236      
240-599 3 Washington Zone 10 MD MCLNVA23DS4  236      
240-599 4 Washington Zone 10 MD MCLNVA23DS4  236      
240-599 7 Washington Zone 10 MD MCLNVA23DS4  236      
240-599 8 Washington Zone 10 MD MCLNVA23DS4  236      
240-607 A Waldorf MD   236      
240-607 5 Waldorf MD MCLNVA23DS4  236      
240-608 6 Frederick MD FRDRMDFRXMD  240   2014-02-15   
240-614 4 Washington Zone 10 MD MCLNVA23DS4  236   2014-08-18   
240-616 1 Washington Zone 13 MD MCLNVA23DS4  236   2012-12-01   
240-617 7 Highfield MD FRDRMDFRXMD  240   2016-10-27   
240-627 A Washington Zone 11 MD   236      
240-627 3 Washington Zone 11 MD MCLNVA23DS4  236      

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

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