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: 230

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-230 A Edgemont IL COVLILCLPMD  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 520      
618-230 0 Edgemont IL STLSMOGZDS5  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2013-04-28   
618-230 1 Edgemont IL STLSMOGZDS5  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2013-04-28   
618-230 2 Edgemont IL STLSMOWQDS2  224C ONVOY, LLC 520   2016-03-27   
618-230 3 Edgemont IL STLSMOWQDS2  224C ONVOY, LLC 520   2016-03-27   
618-230 4 Edgemont IL STLSMOWQDS2  224C ONVOY, LLC 520   2016-09-07   
618-230 5 Edgemont IL STLSMOWQDS2  224C ONVOY, LLC 520   2016-09-07   
618-230 6 Edgemont IL COVLILCLPMD  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 520   2011-06-22   
618-230 7 Edgemont IL COVLILCQXEX  508J CENTURYLINK COMMUNICATIONS, LLC 520   2014-05-05   
618-230 8 Edgemont IL STLSMOGZDS5  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2020-03-18   
618-230 9 Edgemont IL STLSMOWQDS2  224C ONVOY, LLC 520   2023-08-12   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.