Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 307 [Rate centres in NPA 307] [Dial plan for NPA 307]

NXX: 489

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-489 A Shirley Basin WY CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-489 8 Shirley Basin WY CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2018-07-29   
307-489 9 Shirley Basin WY CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2018-07-29   

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

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