Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 837

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-837 A Olney IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978      
618-837 0 Olney IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978      
618-837 1 Olney IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2022-05-13   
618-837 2 Olney IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2022-05-13   
618-837 3 Olney IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2022-05-13   
618-837 4 Olney IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2024-02-14   
618-837 5 Olney IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2022-05-13   
618-837 6 Olney IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2022-05-13   
618-837 7 Olney IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2022-05-13   
618-837 8 Olney IL OLNYILXEWMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 978   2018-10-15   
618-837 9 Olney IL OLNYILABQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2022-07-14   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.