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: 7421 AT&T - LOCAL

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
508-441 A New Bedford MA FRMNMAWA0MD  128      
508-441 5 New Bedford MA FRMNMAWA0MD  128      
508-441 6 New Bedford MA FRMNMAWA0MD  128      
508-466 A Northboro MA FRMNMAWADS0  128      
508-614 A Westboro MA FRMNMAWAEMD  128      
508-614 1 Westboro MA FRMNMAWAEMD  128      
508-614 3 Westboro MA FRMNMAWAEMD  128      
508-614 4 Westboro MA FRMNMAWAEMD  128      
508-614 6 Westboro MA FRMNMAWAEMD  128      
508-614 7 Westboro MA FRMNMAWAEMD  128      
508-688 A Worcester MA FRMNMAWAEMD  128      
508-688 3 Worcester MA FRMNMAWAEMD  128      
508-688 6 Worcester MA FRMNMAWAEMD  128      
508-688 8 Worcester MA FRMNMAWAEMD  128      
508-779 3 Uxbridge MA FRMNMAWADS0  128   2006-03-23   
508-809 2 North Attleboro MA FRMNMAWADS0  128   2002-10-07   
508-918 A Franklin MA FRMNMAWADS0  128      
508-918 1 Franklin MA FRMNMAWADS0  128      
508-964 A Mansfield MA FRMNMAWA8MD  128      
509-213 A Springdale WA SPKNWA01XPY  676      
509-213 9 Springdale WA SPKNWA01XPY  676   2022-03-17   
509-431 A Moses Lake WA SPKNWA01DS3  676      
509-431 9 Moses Lake WA SPKNWA01DS3  676      
509-842 A Spokane WA SPKNWA01XPY  676      
509-842 1 Spokane WA SPKNWA01XPY  676      
510-240 4 Fremont-Newark: Greenleaf DA CA SNFCCA01DS5  722   2002-09-03   
510-342 1 Hayward CA SNFCCA01DS5  722   2010-01-20   
510-344 4 Fremont-Newark: Oliver DA CA SNFCCA01DS5  722   2004-07-23   
510-576 4 Hayward CA SNFCCA01DS5  722   2001-07-25   
510-960 A Oakland: Berkeley DA CA OKLDCA03XMY  722      
510-960 7 Oakland: Berkeley DA CA OKLDCA03XMY  722   2019-11-01   
512-634 A Austin TX AUSTTXGRDS4  558      
512-634 0 Austin TX AUSTTXGRDS4  558      
512-634 1 Austin TX AUSTTXGRDS4  558      
512-634 2 Austin TX AUSTTXGRDS4  558      
512-634 3 Austin TX AUSTTXGRDS4  558      
512-634 4 Austin TX AUSTTXGRDS4  558      
512-634 5 Austin TX AUSTTXGRDS4  558      
512-634 9 Austin TX AUSTTXGRDS4  558      
512-655 4 Austin TX AUSTTXGRDS4  558   2012-07-16   
512-655 5 Austin TX AUSTTXGRDS4  558   2012-07-16   
512-666 2 Austin TX AUSTTXGRDS4  558   2011-06-10   
512-855 A Lockhart TX AUSTTXGRXVY  558      
512-855 9 Lockhart TX AUSTTXGRXVY  558   2002-05-19   
513-341 2 Hamilton OH CNCNOHWSX4Y  922      
513-442 7 Cincinnati OH CNCNOHWSX4Y  922   2009-02-08   
513-512 6 Cincinnati OH CNCNOHWSX4Y  922   2012-03-02   
513-580 5 Cincinnati OH CNCNOHWSX4Y  922   2012-02-08   
513-592 5 Cincinnati OH CNCNOHWSX4Y  922   2014-04-12   
513-592 6 Cincinnati OH CNCNOHWSX4Y  922   2014-04-12   

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

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