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: 455

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-455 A Willow Hill IL WWHLILXERS0  1015 FRONTIER NORTH, INC. - IL 978      
618-455 0 Willow Hill IL OLNYILXEEMD  9915 DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 978   2003-06-04   
618-455 1 Willow Hill IL OLNYILXEGMD  224C ONVOY, LLC 978   2023-10-08   
618-455 2 Willow Hill IL OLNYILXEX2X  624H ONVOY SPECTRUM, LLC 978   2023-07-29   
618-455 3 Willow Hill IL WWHLILXERS0  1015 FRONTIER NORTH, INC. - IL 978      
618-455 5 Willow Hill IL OLNYILXEGMD  224C ONVOY, LLC 978   2021-04-09   
618-455 8 Willow Hill IL OLNYILXEGMD  224C ONVOY, LLC 978   2020-03-13   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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