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: 352

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-352 A Rock Springs WY RCSPWYMADS1  9636 QWEST CORPORATION 654      
307-352 0 Rock Springs WY   9636 QWEST CORPORATION 654      
307-352 1 Rock Springs WY   9636 QWEST CORPORATION 654      
307-352 2 Rock Springs WY   9636 QWEST CORPORATION 654      
307-352 3 Rock Springs WY   9636 QWEST CORPORATION 654      
307-352 4 Rock Springs WY   9636 QWEST CORPORATION 654      
307-352 5 Rock Springs WY   9636 QWEST CORPORATION 654      
307-352 6 Rock Springs WY   9636 QWEST CORPORATION 654      
307-352 7 Rock Springs WY   9636 QWEST CORPORATION 654      
307-352 8 Rock Springs WY   9636 QWEST CORPORATION 654      
307-352 9 Rock Springs WY   081F BANDWIDTH.COM CLEC, LLC - WY 654   2008-11-29   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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