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
208-200 A Idaho Falls ID   652      
208-399 A Driggs ID PCTLIDMA7MD  652      
208-399 2 Driggs ID   652      
208-399 6 Driggs ID   652   2010-04-19   
208-499 A Irwin ID PCTLIDMA7MD  652      
208-499 8 Irwin ID   652      
307-229 A Cokeville WY   654      
307-229 0 Cokeville WY   654   2015-04-03   
307-231 8 Pinedale WY   654   2014-09-12   
307-239 A Dubois WY   654      
307-239 0 Dubois WY   654   2016-01-01   
307-656 A Alpine WY RCSPWY08AMD  654   2007-05-19   
307-774 A Jackson WY RCSPWY08AMD  654      
307-828 8 Kemmerer WY   654   2012-07-06   
307-880 A Freedom WY RCSPWY08AMD  654      
307-887 A Afton WY RCSPWY08AMD  654      
435-217 A Randolph UT   660      
435-217 0 Randolph UT   660      
435-217 4 Randolph UT   660      
435-217 5 Randolph UT   660      
435-217 8 Randolph UT   660      

Last updated: Sat, 27 Jul 2019 10:59:49 UTC

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