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: MDSNWIADX8X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
608-893 A Madison WI 732J NUSO, LLC 354      
608-893 1 Madison WI 732J NUSO, LLC 354   2023-04-01   
608-910 7 Madison WI 732J NUSO, LLC 354   2024-06-23   
608-910 9 Madison WI 732J NUSO, LLC 354   2024-06-23   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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