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.

OCN: 7421 AT&T - LOCAL

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
949-471 9 Irvine CA LSANCA02DS1  730      
949-573 9 Capistrano Valley CA LSANCA02DS1  730      
949-616 1 Saddleback Valley CA LSANCA02DS1  730      
949-616 7 Saddleback Valley CA LSANCA02DS1  730      
949-726 7 Irvine CA LSANCA02DS1  730   2005-01-09   
949-812 3 Irvine CA LSANCA02DS1  730   2006-12-11   
951-256 9 Corona CA LSANCA02DS1  730      
951-436 2 Perris CA SHOKCA02DS1  730   2001-11-05   
951-492 7 Hemet: Hemet DA CA SHOKCA02DS1  730   2004-05-13   
951-755 A Banning CA SHOKCA02DS1  730      
951-755 5 Banning CA SHOKCA02DS1  730   2002-09-24   
952-324 A Twin Cities MN GLVYMNORVMD  628      
952-324 1 Twin Cities MN GLVYMNORVMD  628      
952-324 3 Twin Cities MN GLVYMNORVMD  628      
952-324 8 Twin Cities MN GLVYMNORVMD  628      
952-324 9 Twin Cities MN GLVYMNORVMD  628      
952-367 A Twin Cities MN GLVYMNORVMD  628      
952-367 0 Twin Cities MN GLVYMNORVMD  628      
952-367 1 Twin Cities MN GLVYMNORVMD  628      
952-367 3 Twin Cities MN GLVYMNORVMD  628      
952-367 5 Twin Cities MN GLVYMNORVMD  628      
952-367 8 Twin Cities MN GLVYMNORVMD  628      
952-769 A Twin Cities MN GLVYMNORVMD  628      
952-769 0 Twin Cities MN GLVYMNORVMD  628      
952-769 1 Twin Cities MN GLVYMNORVMD  628      
952-769 2 Twin Cities MN GLVYMNORVMD  628      
952-769 5 Twin Cities MN GLVYMNORVMD  628      
952-769 8 Twin Cities MN GLVYMNORVMD  628      
954-940 A Fort Lauderdale FL FTLDFLOVDS2  46017      
954-940 9 Fort Lauderdale FL FTLDFLOVDS2  46017      
956-217 8 McAllen TX HRLNTXATJMD  568   2009-04-06   
956-243 A Brownsville TX HRLNTXAT1MD  568      
956-243 9 Brownsville TX HRLNTXAT1MD  568      
956-258 A Pharr TX HRLNTXHGXCX  568      
956-258 9 Pharr TX HRLNTXHGXCX  568   2013-06-27   
956-319 A Laredo TX LARDTXAC1MD  566      
956-319 9 Laredo TX LARDTXAC1MD  566      
956-637 A Rio Hondo TX HRLNTXATZMD  568      
956-637 9 Rio Hondo TX HRLNTXATZMD  568   2021-06-17   
956-734 A Harlingen TX HRLNTXAT1MD  568      
956-734 9 Harlingen TX HRLNTXAT1MD  568      
956-788 A San Benito TX HRLNTXATJMD  568      
956-788 9 San Benito TX HRLNTXATJMD  568      
959-678 A Killingworth CT NWHNCT02XOX  920      
959-678 9 Killingworth CT NWHNCT02XOX  920   2022-08-21   
970-343 A Vail CO DNVRCOMAX0X  656      
970-343 1 Vail CO DNVRCOMAX0X  656      
970-439 A Steamboat Springs CO DNVRCOMA33Z  656      
970-439 9 Steamboat Springs CO DNVRCOMAX5Z  656   2006-01-12   
972-244 0 Plano TX FTWOTXEDX1Z  552      

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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