Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 756

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-756 A Alton IA ALTNIAXORS0  1331 WEST IOWA TEL. CO. 630      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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