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: 473

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-473 A Hecker IL HCKRILXEDS0  1036 FRONTIER NORTH, INC. - IL 520      
618-473 0 Hecker IL STLVMOOH6MD  5562 METROPCS, INC. 520   2022-03-10   
618-473 2 Hecker IL HCKRILXEDS0  1036 FRONTIER NORTH, INC. - IL 520      
618-473 3 Hecker IL HCKRILXEDS0  1036 FRONTIER NORTH, INC. - IL 520      
618-473 6 Hecker IL COVLILCLPMD  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 520   2026-07-27   
618-473 7 Hecker IL MTVRILMV9MD  075A MCC NETWORK SERVICES, LLC 520   2021-02-28   
618-473 8 Hecker IL COVLILCQXIX  984E BANDWIDTH.COM CLEC, LLC - IL 520   2020-04-16   
618-473 9 Hecker IL HCKRILXEDS0  1036 FRONTIER NORTH, INC. - IL 520      

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.