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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NPA: 515 [Rate centres in NPA 515] [Dial plan for NPA 515]

NXX: 997

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-997 A Des Moines IA   478J NUSO, LLC 632   2025-04-20   
515-997 1 Des Moines IA   478J NUSO, LLC 632   2025-04-20   
515-997 6 Des Moines IA   8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 632   2025-05-30   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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