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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OCN: 793K TWC IP ENABLED SERVICES, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
917-563 7 New York City Zone 09 NY NYCMNYWI0MD  132   2011-04-22   
917-639 3 New York City Zone 01 NY NYCMNYWI0MD  132   2007-06-10   
917-675 6 New York City Zone 01 NY NYCMNYWI0MD  132   2008-03-17   
917-675 7 New York City Zone 01 NY NYCMNYWI0MD  132   2009-07-28   
917-745 A New York City Zone 08 NY NYCMNYWI0MD  132      
917-745 0 New York City Zone 08 NY NYCMNYWI0MD  132   2011-05-16   
917-745 1 New York City Zone 08 NY NYCMNYWI0MD  132   2011-05-16   
917-830 A New York City Zone 14 NY NYCMNYWI0MD  132      
917-830 0 New York City Zone 14 NY NYCMNYWI0MD  132   2011-05-23   
917-830 1 New York City Zone 14 NY NYCMNYWI0MD  132   2011-05-23   
917-832 6 New York City Zone 08 NY NYCMNYWI0MD  132   2008-09-30   
917-832 7 New York City Zone 08 NY NYCMNYWI0MD  132   2008-10-23   
917-908 A New York City Zone 09 NY NYCMNYWI0MD  132      
917-908 0 New York City Zone 09 NY NYCMNYWI0MD  132   2018-05-03   
917-909 0 New York City Zone 06 NY NYCMNYWI0MD  132   2013-12-06   
917-909 1 New York City Zone 06 NY NYCMNYWI0MD  132   2013-12-06   
917-965 2 New York City Zone 01 NY NYCMNYWI0MD  132   2011-06-11   
917-966 6 New York City Zone 06 NY NYCMNYWI0MD  132   2016-10-02   
919-205 1 Smithfield NC   949   2013-05-21   
919-234 0 Cary NC DRHMNCEV0MD  426   2013-05-21   
919-234 1 Cary NC DRHMNCEV0MD  426   2013-08-01   
919-234 6 Cary NC DRHMNCEV0MD  426   2012-03-28   
919-237 1 Durham NC DRHMNCEV0MD  426   2007-01-05   
919-237 2 Durham NC DRHMNCEV0MD  426   2007-01-05   
919-237 3 Durham NC DRHMNCEV0MD  426   2007-01-05   
919-239 4 Raleigh NC DRHMNCEV0MD  426   2008-04-08   
919-240 4 Chapel Hill NC DRHMNCEV0MD  426   2007-01-05   
919-240 5 Chapel Hill NC DRHMNCEV0MD  426   2007-01-19   
919-240 7 Chapel Hill NC DRHMNCEV0MD  426   2009-09-04   
919-241 4 Hillsborough NC DRHMNCEV0MD  426   2007-01-05   
919-243 0 Clayton NC DRHMNCEV0MD  426   2013-05-21   
919-243 1 Clayton NC DRHMNCEV0MD  426   2014-03-23   
919-243 2 Clayton NC DRHMNCEV0MD  426   2015-08-03   
919-243 8 Clayton NC DRHMNCEV0MD  426   2012-05-07   
919-245 8 Hillsborough NC DRHMNCEV0MD  426   2013-05-21   
919-251 8 Durham NC DRHMNCEV0MD  426   2007-09-05   
919-251 9 Durham NC DRHMNCEV0MD  426   2007-09-05   
919-263 1 Wake Forest NC DRHMNCEV0MD  426   2013-05-21   
919-263 8 Wake Forest NC DRHMNCEV0MD  426   2013-05-21   
919-263 9 Wake Forest NC DRHMNCEV0MD  426   2011-10-13   
919-267 4 Apex NC DRHMNCEV0MD  426   2007-01-05   
919-267 5 Apex NC DRHMNCEV0MD  426   2007-01-19   
919-267 6 Apex NC DRHMNCEV0MD  426   2008-05-16   
919-267 9 Apex NC DRHMNCEV0MD  426   2009-02-10   
919-275 4 Angier NC DRHMNCEV0MD  426   2007-01-05   
919-285 2 Fuquay-Varina NC DRHMNCEV0MD  426   2008-08-21   
919-285 3 Fuquay-Varina NC DRHMNCEV0MD  426   2007-01-05   
919-285 4 Fuquay-Varina NC DRHMNCEV0MD  426   2007-01-19   
919-288 1 Goldsboro NC DRHMNCEV0MD  426   2007-01-05   
919-288 2 Goldsboro NC DRHMNCEV0MD  426   2007-01-19   

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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