Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Curlew, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
712-855 A PLVRIAXORS0  1261 NORTHWEST TEL. COOP. ASSN. 630      

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

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