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: NSVRTN964MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
931-377 A Clarksville TN 732J NUSO, LLC 470      
931-377 1 Clarksville TN 732J NUSO, LLC 470   2023-04-23   
931-419 3 Clarksville TN 732J NUSO, LLC 470   2024-02-18   
931-419 4 Clarksville TN 732J NUSO, LLC 470   2024-02-18   
931-429 7 Clarksville TN 732J NUSO, LLC 470   2024-06-18   
931-429 8 Clarksville TN 732J NUSO, LLC 470   2024-06-18   
931-429 9 Clarksville TN 732J NUSO, LLC 470   2024-06-18   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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