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: 348

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-348 A Herrick IL COVLILCQXIX  984E BANDWIDTH.COM CLEC, LLC - IL 520      
618-348 0 Herrick IL   984E BANDWIDTH.COM CLEC, LLC - IL 520   2020-05-23   
618-348 1 Herrick IL   073H TELNYX LLC 520   2020-07-10   
618-348 2 Herrick IL   224C ONVOY, LLC 520   2021-08-12   
618-348 3 Herrick IL   224C ONVOY, LLC 520   2021-02-26   
618-348 4 Herrick IL   624H ONVOY SPECTRUM, LLC 520   2025-01-04   
618-348 5 Herrick IL   224C ONVOY, LLC 520   2023-10-08   
618-348 7 Herrick IL   224C ONVOY, LLC 520   2021-04-24   
618-348 8 Herrick IL   495J STRATUS NETWORKS 520   2020-11-22   
618-348 9 Herrick IL   073H TELNYX LLC 520   2023-04-15   

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

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