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.

OCN: 6119 LEVEL 3 COMMUNICATIONS, LLC - MD

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
240-752 8 Washington Zone 2 MD MCLNVA23DS4  236   2008-02-11   
240-752 9 Washington Zone 2 MD MCLNVA23DS4  236   2006-09-19   
240-753 A Washington Zone 10 MD MCLNVA23DS4  236      
240-753 6 Washington Zone 10 MD MCLNVA23DS4  236   2013-03-09   
240-753 7 Washington Zone 10 MD MCLNVA23DS4  236   2013-05-11   
240-754 A Waldorf MD MCLNVA23DS4  236      
240-754 2 Waldorf MD MCLNVA23DS4  236   2012-01-02   
240-759 6 Washington Zone 15 (Baltimore LATA) MD BLTMMDSN6MD  238   2022-10-27   
240-762 4 Washington Zone 2 MD MCLNVA23DS4  236   2014-07-18   
240-762 6 Washington Zone 2 MD MCLNVA23DS4  236   2014-07-04   
240-764 4 Washington Zone 4 MD MCLNVA23DS4  236   2003-01-12   
240-766 8 Washington Zone 6 MD MCLNVA23DS4  236   2008-02-29   
240-767 4 Washington Zone 5 MD MCLNVA23DS4  236   2008-02-13   
240-767 6 Washington Zone 5 MD MCLNVA23DS4  236   2008-02-13   
240-770 0 Washington Zone 4 MD MCLNVA23DS4  236   2008-02-13   
240-770 2 Washington Zone 4 MD MCLNVA23DS4  236   2008-02-13   
240-772 5 Frederick MD FRDRMDFRXMD  240   2012-10-07   
240-772 9 Frederick MD FRDRMDFRXMD  240   2014-06-21   
240-774 7 Lonaconing MD   240   2016-11-12   
240-775 9 Westernport MD FRDRMDFRXMD  240   2019-06-21   
240-776 A La Plata MD MCLNVA23DS4  236      
240-776 8 La Plata MD MCLNVA23DS4  236   2008-05-16   
240-780 A Gaithersburg MD MCLNVA23DS4  236      
240-780 3 Gaithersburg MD MCLNVA23DS4  236      
240-780 4 Gaithersburg MD MCLNVA23DS4  236      
240-786 A Laurel MD MCLNVA23DS4  236      
240-786 0 Laurel MD MCLNVA23DS4  236      
240-786 3 Laurel MD MCLNVA23DS4  236      
240-786 4 Laurel MD MCLNVA23DS4  236      
240-786 9 Laurel MD MCLNVA23DS4  236      
240-787 A Brandywine MD MCLNVA23DS4  236      
240-787 0 Brandywine MD MCLNVA23DS4  236      
240-788 A Washington Zone 5 MD MCLNVA23DS4  236      
240-788 3 Washington Zone 5 MD MCLNVA23DS4  236      
240-788 4 Washington Zone 5 MD MCLNVA23DS4  236   2012-05-12   
240-790 A Washington Zone 13 MD MCLNVA23DS4  236      
240-790 0 Washington Zone 13 MD MCLNVA23DS4  236      
240-790 1 Washington Zone 13 MD MCLNVA23DS4  236      
240-790 3 Washington Zone 13 MD MCLNVA23DS4  236      
240-790 7 Washington Zone 13 MD MCLNVA23DS4  236      
240-794 A Lexington Park-Great Mills MD MCLNVA23DS4  236      
240-794 1 Lexington Park-Great Mills MD MCLNVA23DS4  236      
240-803 4 Cumberland MD FRDRMDFRXMD  240   2014-01-17   
240-812 4 Poolesville MD MCLNVA23DS4  236      
240-821 5 Washington Zone 3 MD MCLNVA23DS4  236   2006-01-28   
240-821 6 Washington Zone 3 MD MCLNVA23DS4  236   2006-01-28   
240-822 0 New Market MD FRDRMDFRXMD  240   2022-10-14   
240-839 4 Washington Zone 3 MD MCLNVA23DS4  236   2010-06-21   
240-839 6 Washington Zone 3 MD MCLNVA23DS4  236   2014-04-26   
240-855 0 Washington Zone 2 MD MCLNVA23DS4  236   2008-02-01   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.