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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
210-845 1 San Antonio TX   566      
210-852 4 San Antonio TX   566   2006-11-05   
210-858 3 San Antonio TX   566   2004-08-04   
210-858 4 San Antonio TX   566   2004-08-04   
210-874 6 San Antonio TX   566   2017-11-13   
210-878 4 San Antonio TX   566   2006-12-22   
210-881 9 San Antonio TX   566   2006-12-22   
210-886 8 San Antonio TX   566   2005-12-15   
210-888 A San Antonio TX   566      
210-888 1 San Antonio TX   566   2007-10-08   
210-888 2 San Antonio TX   566   2007-10-08   
210-888 3 San Antonio TX   566   2007-10-08   
210-888 4 San Antonio TX   566   2007-10-08   
210-888 5 San Antonio TX   566   2007-10-08   
210-888 6 San Antonio TX   566   2007-10-08   
210-888 7 San Antonio TX   566   2007-09-24   
210-932 8 San Antonio TX   566   2007-01-05   
210-943 0 San Antonio TX   566   2016-07-01   
210-957 2 San Antonio TX   566   2007-07-09   
210-957 3 San Antonio TX   566   2007-07-09   
210-957 4 San Antonio TX   566   2007-07-09   
210-962 3 San Antonio TX   566   2018-01-25   
210-962 4 San Antonio TX   566   2018-02-15   
210-963 3 San Antonio TX   566   2016-09-20   
210-967 3 San Antonio TX   566   2007-01-05   
210-969 4 San Antonio TX   566   2016-10-06   
210-969 5 San Antonio TX   566   2016-10-06   
210-969 6 San Antonio TX   566   2016-10-06   
210-969 7 San Antonio TX   566   2016-11-03   
210-969 8 San Antonio TX   566   2016-11-03   
210-977 0 San Antonio TX   566   2006-03-03   
210-982 3 San Antonio TX   566   2016-04-18   
210-982 4 San Antonio TX   566   2016-04-18   
210-998 2 San Antonio TX   566   2011-04-11   
210-998 3 San Antonio TX   566   2011-04-11   
210-998 4 San Antonio TX   566   2011-04-20   
210-999 5 San Antonio TX   566   2005-12-15   
212-256 0 New York City Zone 01 NY NYCMNYWI0MD  132   2011-03-15   
212-300 A New York City Zone 01 NY NYCMNYWI0MD  132      
212-300 4 New York City Zone 01 NY NYCMNYWI0MD  132   2004-04-26   
212-510 7 New York City Zone 01 NY NYCMNYWI0MD  132   2011-03-05   
212-510 8 New York City Zone 01 NY NYCMNYWI0MD  132   2011-03-15   
212-837 1 New York City Zone 01 NY NYCMNYWI0MD  132   2011-02-28   
212-837 2 New York City Zone 01 NY NYCMNYWI0MD  132   2011-02-28   
212-933 0 New York City Zone 01 NY NYCMNYWI0MD  132   2005-02-25   
212-933 1 New York City Zone 01 NY NYCMNYWI0MD  132   2005-02-25   
212-933 4 New York City Zone 01 NY NYCMNYWI0MD  132   2005-02-25   
214-200 3 Dallas TX   552   2015-01-21   
214-214 5 Dallas TX   552   2017-04-28   
214-222 5 Lewisville TX   552   2009-05-22   
214-235 A Grand Prairie TX   552      
214-235 0 Grand Prairie TX   552   2003-06-26   
214-238 0 Dallas TX   552   2014-10-18   
214-238 6 Dallas TX   552   2014-10-18   
214-238 7 Dallas TX   552   2014-10-18   
214-242 8 Dallas TX   552   2004-06-10   
214-242 9 Dallas TX   552   2004-06-10   
214-258 5 Dallas TX   552   2015-11-27   
214-258 6 Dallas TX   552   2015-11-27   
214-272 3 Dallas TX   552   2008-03-31   
214-272 7 Dallas TX   552   2008-03-31   
214-272 8 Dallas TX   552   2008-03-31   
214-272 9 Dallas TX   552   2008-03-31   
214-299 9 Plano TX   552   2008-07-04   
214-308 9 Frisco TX   552   2014-07-31   
214-377 A Dallas TX   552      
214-377 7 Dallas TX   552   2007-05-04   
214-377 8 Dallas TX   552   2007-05-04   
214-377 9 Dallas TX   552   2007-05-04   
214-407 7 Frisco EACS TX   552   2007-06-12   
214-407 8 Frisco EACS TX   552   2007-06-12   
214-412 2 Grand Prairie EMS TX   552   2007-06-27   
214-412 3 Grand Prairie EMS TX   552   2008-03-17   
214-440 2 Plano TX   552   2007-02-23   
214-468 4 Dallas TX   552   2012-01-03   
214-484 1 Dallas TX   552   2007-07-13   
214-484 2 Dallas TX   552   2007-07-13   
214-484 3 Dallas TX   552   2007-07-13   
214-484 4 Dallas TX   552   2007-07-13   
214-484 5 Dallas TX   552   2007-07-13   
214-484 6 Dallas TX   552   2007-07-13   
214-484 7 Dallas TX   552   2007-07-27   
214-484 8 Dallas TX   552   2007-07-27   
214-484 9 Dallas TX   552   2007-07-27   
214-501 A Plano TX   552      
214-501 2 Plano TX   552   2007-08-07   
214-501 3 Plano TX   552   2007-08-07   
214-501 4 Plano TX   552   2007-08-07   
214-513 0 Lewisville TX   552   2010-03-27   
214-513 9 Lewisville TX   552   2003-06-26   
214-518 6 Grand Prairie TX   552   2011-08-15   
214-548 4 McKinney TX   552   2007-06-12   
214-548 5 McKinney TX   552   2007-06-12   
214-592 8 McKinney TX   552   2011-04-15   
214-613 2 Dallas TX   552   2009-03-31   
214-643 6 Dallas TX   552   2011-02-28   
214-647 1 Dallas TX   552      
214-677 0 Grand Prairie TX   552      
214-677 1 Grand Prairie TX   552      
214-730 0 Dallas TX   552   2012-01-03   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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