Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: WASHDCCZDS1

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
571-612 2 Herndon VA 4772 XO VIRGINIA, LLC 236   2010-11-17   
571-612 3 Herndon VA 4772 XO VIRGINIA, LLC 236   2010-11-17   
571-635 1 Washington Zone 17 VA 4772 XO VIRGINIA, LLC 236   2015-05-14   
571-659 6 Dale City VA 4772 XO VIRGINIA, LLC 236   2010-09-28   
571-730 1 Washington Zone 17 VA 4772 XO VIRGINIA, LLC 236   2007-04-11   
571-730 2 Washington Zone 17 VA 4772 XO VIRGINIA, LLC 236   2007-04-11   
571-766 1 Washington Zone 17 VA 4772 XO VIRGINIA, LLC 236   2008-01-07   
571-830 3 Washington Zone 17 VA 4772 XO VIRGINIA, LLC 236   2007-09-11   
571-858 4 Washington Zone 8 VA 4772 XO VIRGINIA, LLC 236   2011-11-21   
571-858 8 Washington Zone 8 VA 4772 XO VIRGINIA, LLC 236   2011-03-21   
571-858 9 Washington Zone 8 VA 4772 XO VIRGINIA, LLC 236   2011-03-21   
703-206 6 Washington Zone 17 VA 4772 XO VIRGINIA, LLC 236   2014-02-21   
703-206 7 Washington Zone 17 VA 4772 XO VIRGINIA, LLC 236   2012-04-27   
703-249 4 Braddock VA 4772 XO VIRGINIA, LLC 236   2007-05-07   
703-249 5 Braddock VA 4772 XO VIRGINIA, LLC 236   2010-03-25   
703-424 2 Washington Zone 19 VA 4772 XO VIRGINIA, LLC 236   2008-01-07   
703-429 3 Herndon VA 4772 XO VIRGINIA, LLC 236   2012-02-24   
703-429 5 Herndon VA 4772 XO VIRGINIA, LLC 236   2012-02-24   
703-483 3 Herndon VA 4772 XO VIRGINIA, LLC 236   2006-07-27   
703-651 5 Dulles VA 4772 XO VIRGINIA, LLC 236   2006-08-06   
703-657 7 Herndon VA 4772 XO VIRGINIA, LLC 236   2007-07-16   
703-657 8 Herndon VA 4772 XO VIRGINIA, LLC 236   2007-07-16   
703-662 6 Dulles VA 4772 XO VIRGINIA, LLC 236   2011-04-01   
703-720 9 Washington Zone 17 VA 4772 XO VIRGINIA, LLC 236   2012-04-27   
703-763 2 Dale City VA 4772 XO VIRGINIA, LLC 236   2006-09-03   
703-763 7 Dale City VA 4772 XO VIRGINIA, LLC 236   2009-01-05   
703-888 5 Washington Zone 8 VA 4772 XO VIRGINIA, LLC 236   2006-08-06   
703-949 4 Herndon VA 4772 XO VIRGINIA, LLC 236   2011-07-03   
703-949 5 Herndon VA 4772 XO VIRGINIA, LLC 236   2011-07-03   
703-949 6 Herndon VA 4772 XO VIRGINIA, LLC 236   2011-07-03   
703-949 7 Herndon VA 4772 XO VIRGINIA, LLC 236   2011-07-03   
703-956 2 Herndon VA 4772 XO VIRGINIA, LLC 236   2010-02-08   
703-988 2 Braddock VA 4772 XO VIRGINIA, LLC 236   2010-11-17   

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

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