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: 934

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-934 A Summerfield IL SRFDILXERS0  1036 FRONTIER NORTH, INC. - IL 520      
618-934 0 Summerfield IL   073H TELNYX LLC 520   2020-07-20   
618-934 1 Summerfield IL   224C ONVOY, LLC 520   2019-07-29   
618-934 2 Summerfield IL   792K CHARTER IP ENABLED SERVICES, LLC 520   2005-09-25   
618-934 3 Summerfield IL   1036 FRONTIER NORTH, INC. - IL 520      
618-934 4 Summerfield IL   224C ONVOY, LLC 520   2018-07-29   
618-934 5 Summerfield IL   1036 FRONTIER NORTH, INC. - IL 520      
618-934 6 Summerfield IL   508J CENTURYLINK COMMUNICATIONS, LLC 520   2016-01-23   
618-934 7 Summerfield IL   624H ONVOY SPECTRUM, LLC 520   2025-01-04   
618-934 8 Summerfield IL   224C ONVOY, LLC 520   2019-07-29   
618-934 9 Summerfield IL   1036 FRONTIER NORTH, INC. - IL 520      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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