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: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-421 A Robinson IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978      
618-421 1 Robinson IL OLNYILXEHMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 978   2003-04-29   
618-421 2 Robinson IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2005-01-14   
618-421 3 Robinson IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2006-06-02   
618-421 4 Robinson IL OLNYILAB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 978   2005-01-30   
618-421 5 Robinson IL OLNYILXEWMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 978   2006-10-25   
618-421 7 Robinson IL OLNYILAB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 978   2018-12-27   
618-421 8 Robinson IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2016-03-31   
618-421 9 Robinson IL OLNYILXEEMD  9915 DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 978   2003-06-04   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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