Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 858

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-858 A Aviston IL STLSMOGZ00Z  490J DISH WIRELESS, LLC 520      
618-858 0 Aviston IL STLSMOGZ00Z  490J DISH WIRELESS, LLC 520   2023-01-25   
618-858 1 Aviston IL STLTMOBOAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 520   2024-09-01   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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