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: 730

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-730 A Olney IL   624H ONVOY SPECTRUM, LLC 978      
618-730 0 Olney IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2023-11-27   
618-730 1 Olney IL   224C ONVOY, LLC 978   2026-01-11   
618-730 2 Olney IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2023-11-27   
618-730 3 Olney IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2023-11-27   
618-730 4 Olney IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2023-11-27   
618-730 5 Olney IL   624H ONVOY SPECTRUM, LLC 978   2023-11-17   
618-730 6 Olney IL   624H ONVOY SPECTRUM, LLC 978   2023-11-17   
618-730 7 Olney IL   624H ONVOY SPECTRUM, LLC 978   2023-11-17   
618-730 8 Olney IL   624H ONVOY SPECTRUM, LLC 978   2023-11-17   
618-730 9 Olney IL   624H ONVOY SPECTRUM, LLC 978   2023-11-17   

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

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