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
202-601 5 Washington Zone 1 DC 8964 XO D.C., INC. 236   2013-03-05   
202-601 6 Washington Zone 1 DC 8964 XO D.C., INC. 236   2013-03-05   
202-627 1 Washington Zone 1 DC 8964 XO D.C., INC. 236   2012-07-27   
202-627 3 Washington Zone 1 DC 8964 XO D.C., INC. 236   2012-07-27   
202-697 4 Washington Zone 1 DC 8964 XO D.C., INC. 236   2010-09-12   
202-697 5 Washington Zone 1 DC 8964 XO D.C., INC. 236   2010-09-12   
202-706 5 Washington Zone 1 DC 8964 XO D.C., INC. 236   2010-02-27   
202-706 6 Washington Zone 1 DC 8964 XO D.C., INC. 236   2010-02-27   
202-706 7 Washington Zone 1 DC 8964 XO D.C., INC. 236   2010-02-27   
202-753 1 Washington Zone 1 DC 8964 XO D.C., INC. 236   2014-04-04   
202-753 2 Washington Zone 1 DC 8964 XO D.C., INC. 236   2014-04-04   
202-810 6 Washington Zone 1 DC 8964 XO D.C., INC. 236   2012-04-14   
202-810 7 Washington Zone 1 DC 8964 XO D.C., INC. 236   2012-04-14   
202-810 8 Washington Zone 1 DC 8964 XO D.C., INC. 236   2012-04-14   
202-821 A Washington Zone 1 DC 8964 XO D.C., INC. 236      
202-821 0 Washington Zone 1 DC 8964 XO D.C., INC. 236      
202-821 1 Washington Zone 1 DC 8964 XO D.C., INC. 236      
202-821 4 Washington Zone 1 DC 8964 XO D.C., INC. 236      
240-241 5 Washington Zone 13 MD 4773 XO MARYLAND, LLC 236   2007-07-09   
240-241 6 Washington Zone 13 MD 4773 XO MARYLAND, LLC 236   2007-07-09   
240-254 5 Hughesville MD 4773 XO MARYLAND, LLC 236   2005-08-15   
240-254 6 Hughesville MD 4773 XO MARYLAND, LLC 236   2005-08-15   
240-256 7 Leonardtown MD 4773 XO MARYLAND, LLC 236   2005-08-15   
240-256 8 Leonardtown MD 4773 XO MARYLAND, LLC 236   2005-08-15   
240-257 7 Nanjemoy MD 4773 XO MARYLAND, LLC 236   2010-11-19   
240-292 7 Washington Zone 11 MD 4773 XO MARYLAND, LLC 236   2007-07-29   
240-316 3 Washington Zone 2 MD 4773 XO MARYLAND, LLC 236   2009-07-31   
240-383 1 Washington Zone 2 MD 4773 XO MARYLAND, LLC 236   2007-07-22   
240-383 3 Washington Zone 2 MD 4773 XO MARYLAND, LLC 236   2007-07-22   
240-390 2 Ashton MD 4773 XO MARYLAND, LLC 236   2006-08-12   
240-454 8 Gaithersburg MD 4773 XO MARYLAND, LLC 236   2006-08-12   
240-454 9 Gaithersburg MD 4773 XO MARYLAND, LLC 236   2006-08-12   
240-489 6 Poolesville MD 4773 XO MARYLAND, LLC 236   2005-08-15   
240-489 7 Poolesville MD 4773 XO MARYLAND, LLC 236   2005-08-15   
240-489 8 Poolesville MD 4773 XO MARYLAND, LLC 236   2005-08-15   
240-510 1 Washington Zone 15 MD 4773 XO MARYLAND, LLC 236   2007-03-26   
240-510 2 Washington Zone 15 MD 4773 XO MARYLAND, LLC 236   2007-03-26   
240-516 7 Washington Zone 12 MD 4773 XO MARYLAND, LLC 236   2007-04-05   
240-523 6 La Plata MD 4773 XO MARYLAND, LLC 236   2005-08-15   
240-523 7 La Plata MD 4773 XO MARYLAND, LLC 236   2005-08-15   
240-523 8 La Plata MD 4773 XO MARYLAND, LLC 236   2005-08-15   
240-547 6 Laurel MD 4773 XO MARYLAND, LLC 236   2006-10-27   
240-582 3 Washington Zone 4 MD 4773 XO MARYLAND, LLC 236   2010-04-29   
240-582 8 Washington Zone 4 MD 4773 XO MARYLAND, LLC 236   2007-03-26   
240-582 9 Washington Zone 4 MD 4773 XO MARYLAND, LLC 236   2007-03-26   
240-583 8 Laurel MD 4773 XO MARYLAND, LLC 236   2010-09-02   
240-607 6 Waldorf MD 4773 XO MARYLAND, LLC 236   2005-05-23   
240-607 7 Waldorf MD 4773 XO MARYLAND, LLC 236   2005-05-23   
240-607 8 Waldorf MD 4773 XO MARYLAND, LLC 236   2005-05-23   
240-619 7 Washington Zone 5 MD 4773 XO MARYLAND, LLC 236   2007-07-29   

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Last updated: Thu, 04 Aug 2022 23:14:42 UTC

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