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: 225 [Rate centres in NPA 225] [Dial plan for NPA 225]

NXX: 520

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
225-520 A North Cornor LA JCSNMSCP60Z  624H ONVOY SPECTRUM, LLC 482      
225-520 0 North Cornor LA   749E ONVOY, LLC - LA 482   2023-09-23   
225-520 2 North Cornor LA   624H ONVOY SPECTRUM, LLC 482   2023-08-05   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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