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: WRSPOR05DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
541-615 A Madras OR 094G WARM SPRINGS TELECOMMUNICATIONS COMPANY - OR 672      
541-615 0 Madras OR 094G WARM SPRINGS TELECOMMUNICATIONS COMPANY - OR 672   2011-09-30   
541-777 2 Madras OR 094G WARM SPRINGS TELECOMMUNICATIONS COMPANY - OR 672   2014-04-25   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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