Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 417 [Rate centres in NPA 417] [Dial plan for NPA 417]

NXX: 760

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-760 A Billings MO   7421 AT&T - LOCAL 522   2025-10-06   
417-760 9 Billings MO   7421 AT&T - LOCAL 522   2025-10-06   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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