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: 346

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-346 A Collinsville IL COVLILCQDS0  9329 ILLINOIS BELL TEL CO 520      
618-346 0 Collinsville IL   9329 ILLINOIS BELL TEL CO 520      
618-346 1 Collinsville IL   9329 ILLINOIS BELL TEL CO 520      
618-346 2 Collinsville IL   9329 ILLINOIS BELL TEL CO 520      
618-346 3 Collinsville IL   9329 ILLINOIS BELL TEL CO 520      
618-346 4 Collinsville IL   9329 ILLINOIS BELL TEL CO 520      
618-346 5 Collinsville IL   9329 ILLINOIS BELL TEL CO 520      
618-346 6 Collinsville IL   9329 ILLINOIS BELL TEL CO 520      
618-346 7 Collinsville IL   9329 ILLINOIS BELL TEL CO 520      
618-346 8 Collinsville IL   9329 ILLINOIS BELL TEL CO 520      
618-346 9 Collinsville IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2020-04-13   

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

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