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: 474

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-474 A Alton IL ALTNILAKDS0  9329 ILLINOIS BELL TEL CO 520      
618-474 0 Alton IL ALTNILAKDS0  9329 ILLINOIS BELL TEL CO 520      
618-474 1 Alton IL ALTNILAKDS0  9329 ILLINOIS BELL TEL CO 520      
618-474 2 Alton IL ALTNILAKDS0  9329 ILLINOIS BELL TEL CO 520      
618-474 3 Alton IL ALTNILAKDS0  9329 ILLINOIS BELL TEL CO 520      
618-474 4 Alton IL ALTNILAKDS0  9329 ILLINOIS BELL TEL CO 520      
618-474 5 Alton IL ALTNILAKDS0  9329 ILLINOIS BELL TEL CO 520      
618-474 6 Alton IL ALTNILAKDS0  9329 ILLINOIS BELL TEL CO 520      
618-474 7 Alton IL ALTNILAKDS0  9329 ILLINOIS BELL TEL CO 520      
618-474 8 Alton IL STLSMOWQDS2  224C ONVOY, LLC 520   2019-09-07   
618-474 9 Alton IL COVLILCQXIX  984E BANDWIDTH.COM CLEC, LLC - IL 520   2018-09-03   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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