Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
515-548 A CLNDIAXORS1  1225 LEHIGH VALLEY COOP. TEL. ASSN. 632      

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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