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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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 DESMIA772MD  478J NUSO, LLC 632   2025-04-20   
515-997 1 Des Moines IA DESMIA772MD  478J NUSO, LLC 632   2025-04-20   
515-997 5 Des Moines IA RUDDIA012MD  321J HD CARRIER LLC 632   2026-06-18   
515-997 6 Des Moines IA RUDDIA012MD  321J HD CARRIER LLC 632   2026-06-18   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.