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.


NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
364-200 1 Jordan KY 478J NUSO, LLC 468   2020-10-19   
662-856 A Memphis MS 478J NUSO, LLC 468      
662-856 1 Memphis MS 478J NUSO, LLC 468   2020-10-27   
901-554 6 Memphis TN 478J NUSO, LLC 468   2020-10-17   

Last updated: Fri, 13 May 2022 22:16:13 UTC

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