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.
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-392 2 Washington Zone 5 MD 318J COMCAST IP PHONE, LLC 236   2006-03-03   
240-396 6 Washington Zone 2 MD 318J COMCAST IP PHONE, LLC 236   2005-07-25   
240-403 7 Washington Zone 10 MD 318J COMCAST IP PHONE, LLC 236   2008-03-05   
240-412 0 Waldorf MD 318J COMCAST IP PHONE, LLC 236   2007-01-22   
240-419 2 Waldorf MD 318J COMCAST IP PHONE, LLC 236   2008-04-30   
240-419 3 Waldorf MD 318J COMCAST IP PHONE, LLC 236   2008-04-30   
240-428 1 Washington Zone 10 MD 318J COMCAST IP PHONE, LLC 236   2011-02-13   
240-448 3 Waldorf MD 318J COMCAST IP PHONE, LLC 236   2014-05-10   
240-448 5 Waldorf MD 318J COMCAST IP PHONE, LLC 236   2015-10-20   
240-455 6 Washington Zone 5 MD 318J COMCAST IP PHONE, LLC 236   2007-06-21   
240-455 7 Washington Zone 5 MD 318J COMCAST IP PHONE, LLC 236   2007-06-21   
240-466 3 Mechanicsville MD 318J COMCAST IP PHONE, LLC 236   2015-03-22   
240-467 A Washington Zone 4 MD 318J COMCAST IP PHONE, LLC 236      
240-467 2 Washington Zone 4 MD 318J COMCAST IP PHONE, LLC 236   2013-06-09   
240-467 3 Washington Zone 4 MD 318J COMCAST IP PHONE, LLC 236   2013-10-03   
240-467 5 Washington Zone 4 MD 318J COMCAST IP PHONE, LLC 236   2014-01-04   
240-474 5 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2015-09-30   
240-477 4 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2006-05-29   
240-477 5 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2006-05-29   
240-477 6 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2006-08-02   
240-477 7 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2006-08-02   
240-477 8 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2006-08-02   
240-483 A Washington Zone 2 MD 318J COMCAST IP PHONE, LLC 236      
240-483 0 Washington Zone 2 MD 318J COMCAST IP PHONE, LLC 236      
240-487 6 Washington Zone 4 MD 318J COMCAST IP PHONE, LLC 236   2005-07-20   
240-489 3 Poolesville MD 318J COMCAST IP PHONE, LLC 236   2005-07-25   
240-493 4 Washington Zone 6 MD 318J COMCAST IP PHONE, LLC 236   2007-09-20   
240-493 6 Washington Zone 6 MD 318J COMCAST IP PHONE, LLC 236   2007-06-29   
240-493 7 Washington Zone 6 MD 318J COMCAST IP PHONE, LLC 236   2006-12-29   
240-499 8 Washington Zone 10 MD 318J COMCAST IP PHONE, LLC 236   2006-10-09   
240-510 3 Washington Zone 15 MD 318J COMCAST IP PHONE, LLC 236   2013-01-12   
240-510 5 Washington Zone 15 MD 318J COMCAST IP PHONE, LLC 236   2007-11-25   
240-518 8 Waldorf MD 318J COMCAST IP PHONE, LLC 236   2012-11-10   
240-528 2 Hughesville MD 318J COMCAST IP PHONE, LLC 236   2015-04-24   
240-531 2 Washington Zone 3 MD 318J COMCAST IP PHONE, LLC 236   2017-04-23   
240-532 5 Washington Zone 5 MD 318J COMCAST IP PHONE, LLC 236   2013-12-30   
240-532 6 Washington Zone 5 MD 318J COMCAST IP PHONE, LLC 236   2013-12-30   
240-532 7 Washington Zone 5 MD 318J COMCAST IP PHONE, LLC 236   2013-12-30   
240-534 2 Washington Zone 2 MD 318J COMCAST IP PHONE, LLC 236   2016-06-11   
240-542 4 Washington Zone 13 MD 318J COMCAST IP PHONE, LLC 236   2009-12-11   
240-553 7 Washington Zone 13 MD 318J COMCAST IP PHONE, LLC 236   2013-09-05   
240-558 3 Washington Zone 11 MD 318J COMCAST IP PHONE, LLC 236   2008-04-30   
240-558 4 Washington Zone 11 MD 318J COMCAST IP PHONE, LLC 236   2008-04-30   
240-560 6 Washington Zone 12 MD 318J COMCAST IP PHONE, LLC 236   2012-03-15   
240-560 7 Washington Zone 12 MD 318J COMCAST IP PHONE, LLC 236   2007-05-18   
240-563 1 Washington Zone 5 MD 318J COMCAST IP PHONE, LLC 236   2017-08-24   
240-582 5 Washington Zone 4 MD 318J COMCAST IP PHONE, LLC 236   2012-10-07   
240-582 6 Washington Zone 4 MD 318J COMCAST IP PHONE, LLC 236   2006-10-06   
240-582 7 Washington Zone 4 MD 318J COMCAST IP PHONE, LLC 236   2006-10-06   
240-585 5 Waldorf MD 318J COMCAST IP PHONE, LLC 236   2016-07-12   

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

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