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.

Switch: HNVIALUNXAZ

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
256-222 0 Sheffield AL 553J WHITESKY COMMUNICATIONS, LLC 477   2021-03-28   
256-387 8 Hartselle AL 553J WHITESKY COMMUNICATIONS, LLC 477   2021-03-28   
256-863 A Huntsville AL 553J WHITESKY COMMUNICATIONS, LLC 477      
256-863 1 Huntsville AL 553J WHITESKY COMMUNICATIONS, LLC 477   2021-03-11   
256-866 A Killen AL 553J WHITESKY COMMUNICATIONS, LLC 477      
256-866 1 Killen AL 553J WHITESKY COMMUNICATIONS, LLC 477   2021-05-02   
938-234 0 Hazel Green AL 553J WHITESKY COMMUNICATIONS, LLC 477   2021-03-28   

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

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