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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Switch: RCFRALXADS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
256-377 A Rockford AL 9789 BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 476      
256-377 1 Rockford AL 9789 BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 476      
256-377 2 Rockford AL 9789 BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 476      
256-377 4 Rockford AL 9789 BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 476      
256-935 4 Rockford AL 072F BANDWIDTH.COM CLEC, LLC - AL 476   2021-07-03   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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