Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: DNTNIAXORS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
319-822 A Dunkerton IA 1153 DUNKERTON TEL. COOP. 635      

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

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