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: 499

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-499 A Lyman WY   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654   2026-11-02   
307-499 0 Lyman WY   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654   2026-11-02   
307-499 1 Lyman WY   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654   2026-11-02   
307-499 2 Lyman WY   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654   2026-11-02   
307-499 3 Lyman WY   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654   2026-11-02   
307-499 4 Lyman WY   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654   2026-11-02   
307-499 5 Lyman WY   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654   2026-11-02   
307-499 6 Lyman WY   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654   2026-11-02   
307-499 7 Lyman WY   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654   2026-11-02   
307-499 8 Lyman WY   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654   2026-11-02   
307-499 9 Lyman WY   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654   2026-11-02   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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