Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Jeffrey City, WY

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
307-304 A CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-304 8 CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2020-11-16   
307-304 9 CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2020-11-16   
307-540 A CHYNWYVACM1  013B UNION TELEPHONE COMPANY 654      
307-544 A JFCYWYXCRS0  3410 RT COMMUNICATIONS 654      

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

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