Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 970 [Rate centres in NPA 970] [Dial plan for NPA 970]

NXX: 957

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-957 A Johnstown-Milliken CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2025-02-16   
970-957 9 Johnstown-Milliken CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2025-02-16   

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

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