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: DESMIA771MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
515-301 A Ames IA 732J NUSO, LLC 632      
515-301 1 Ames IA 732J NUSO, LLC 632   2023-04-10   
515-301 6 Ames IA 732J NUSO, LLC 632   2023-12-29   
515-301 7 Ames IA 732J NUSO, LLC 632   2023-12-29   
515-301 8 Ames IA 732J NUSO, LLC 632   2024-06-29   
515-301 9 Ames IA 732J NUSO, LLC 632   2024-06-29   

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

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