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: 881

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-881 A Altamont IL CENLILCEGMD  593K MCC TELEPHONY LLC 520      
618-881 0 Altamont IL CENLILCEGMD  593K MCC TELEPHONY LLC 520   2010-06-10   
618-881 1 Altamont IL STLSMOWQDS2  224C ONVOY, LLC 520   2018-07-29   
618-881 2 Altamont IL STLSMOWQDS2  224C ONVOY, LLC 520   2019-07-29   
618-881 3 Altamont IL STLSMOWQDS2  224C ONVOY, LLC 520   2019-07-29   
618-881 4 Altamont IL STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2021-07-02   
618-881 7 Altamont IL COVLILCQXEX  508J CENTURYLINK COMMUNICATIONS, LLC 520   2016-01-21   
618-881 8 Altamont IL COVLILCQXMX  495J STRATUS NETWORKS 520   2020-10-02   
618-881 9 Altamont IL STLSMOWQ8MD  073H TELNYX LLC 520   2020-06-12   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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