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: 961

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-961 A Glen Carbon IL STLSMOWQDS2  224C ONVOY, LLC 520      
618-961 0 Glen Carbon IL   984E BANDWIDTH.COM CLEC, LLC - IL 520   2018-04-16   
618-961 1 Glen Carbon IL   224C ONVOY, LLC 520   2016-09-28   
618-961 2 Glen Carbon IL   224C ONVOY, LLC 520   2016-09-28   
618-961 3 Glen Carbon IL   224C ONVOY, LLC 520   2019-09-07   
618-961 4 Glen Carbon IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520   2017-01-28   
618-961 6 Glen Carbon IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 520   2019-01-21   
618-961 7 Glen Carbon IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2024-09-27   
618-961 8 Glen Carbon IL   984E BANDWIDTH.COM CLEC, LLC - IL 520   2020-04-09   
618-961 9 Glen Carbon IL   073H TELNYX LLC 520   2018-07-19   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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