Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 4773 XO MARYLAND, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
240-652 9 Mechanicsville MD   236   2005-08-15   
240-667 8 Washington Zone 4 MD   236   2012-03-28   
240-668 2 Damascus MD   236   2005-11-24   
240-668 3 Damascus MD   236   2005-11-24   
240-668 5 Damascus MD   236   2005-11-24   
240-668 6 Damascus MD   236   2005-11-24   
240-668 9 Damascus MD   236   2005-11-24   
240-685 7 Brandywine MD   236   2013-05-29   
240-705 7 Washington Zone 3 MD   236   2010-08-22   
240-718 A Lexington Park-Great Mills MD WASHDCCZDS0  236      
240-718 0 Lexington Park-Great Mills MD   236      
240-718 1 Lexington Park-Great Mills MD   236   2005-08-15   
240-718 2 Lexington Park-Great Mills MD   236   2005-08-15   
240-718 3 Lexington Park-Great Mills MD   236   2005-08-15   
240-718 5 Lexington Park-Great Mills MD   236   2010-12-29   
240-718 7 Lexington Park-Great Mills MD   236      
240-720 6 Gaithersburg MD   236   2008-11-01   
240-745 A Damascus MD WASHDCCZDS0  236      
240-745 0 Damascus MD   236      
240-745 3 Damascus MD   236      
240-764 A Washington Zone 4 MD WASHDCCZDS0  236      
240-764 0 Washington Zone 4 MD   236      
240-764 1 Washington Zone 4 MD   236      
240-764 2 Washington Zone 4 MD   236   2005-08-15   
240-764 3 Washington Zone 4 MD   236   2005-08-15   
240-765 A Washington Zone 5 MD WASHDCCZDS0  236      
240-765 0 Washington Zone 5 MD   236      
240-765 1 Washington Zone 5 MD   236      
240-765 6 Washington Zone 5 MD   236      
240-766 A Washington Zone 6 MD WASHDCCZDS0  236      
240-766 0 Washington Zone 6 MD   236      
240-766 1 Washington Zone 6 MD   236      
240-766 3 Washington Zone 6 MD   236      
240-778 A Washington Zone 10 MD WASHDCCZDS0  236      
240-778 0 Washington Zone 10 MD   236      
240-778 1 Washington Zone 10 MD   236      
240-778 2 Washington Zone 10 MD   236      
240-800 2 Washington Zone 2 MD   236   2012-08-27   
240-804 A Tompkinsville MD WASHDCCZDS0  236      
240-804 0 Tompkinsville MD   236      
240-804 1 Tompkinsville MD   236   2005-08-15   
240-804 2 Tompkinsville MD   236   2005-08-15   
240-804 3 Tompkinsville MD   236   2005-08-15   
240-804 6 Tompkinsville MD   236   2010-11-19   
240-804 8 Tompkinsville MD   236      
240-804 9 Tompkinsville MD   236   2005-08-15   
240-813 7 Gaithersburg MD   236   2009-12-22   
240-823 A Brandywine MD WASHDCCZDS0  236      
240-823 0 Brandywine MD   236      
240-823 1 Brandywine MD   236   2005-08-14   

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Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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