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: 281

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-281 A Sundance WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-281 0 Sundance WY   6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-281 1 Sundance WY   6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-281 2 Sundance WY   6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-281 5 Sundance WY   145J TERRA NOVA TELECOM INC. 654   2025-07-14   
307-281 6 Sundance WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654   2010-11-13   
307-281 7 Sundance WY   9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2023-03-04   

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

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