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: 933

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-933 A West Frankfort IL CRDLILAB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362      
618-933 1 West Frankfort IL   495J STRATUS NETWORKS 362   2020-12-19   
618-933 2 West Frankfort IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362      
618-933 3 West Frankfort IL   224C ONVOY, LLC 362   2021-02-12   
618-933 4 West Frankfort IL   224C ONVOY, LLC 362   2021-02-12   
618-933 5 West Frankfort IL   224C ONVOY, LLC 362   2024-05-20   
618-933 6 West Frankfort IL   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 362   2021-04-24   
618-933 7 West Frankfort IL   624H ONVOY SPECTRUM, LLC 362   2023-06-30   
618-933 8 West Frankfort IL   224C ONVOY, LLC 362   2024-03-03   
618-933 9 West Frankfort IL   224C ONVOY, LLC 362   2024-04-15   

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

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