Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Mountain View, WY

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
307-402 A CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-402 8 CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2021-12-20   
307-402 9 CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2021-12-20   
307-747 A CHYNWYVACM1  013B UNION TELEPHONE COMPANY 654      
307-780 A CHYNWYVACM1  013B UNION TELEPHONE COMPANY 654      
307-782 A MNVWWYXCDS0  2297 UNION TEL. CO. 654      

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

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