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: 564

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-564 A Brookport IL BKPTILXERS0  1015 FRONTIER NORTH, INC. - IL 362      
618-564 0 Brookport IL   9915 DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 362   2003-02-03   
618-564 1 Brookport IL   073H TELNYX LLC 362   2020-06-18   
618-564 2 Brookport IL   1015 FRONTIER NORTH, INC. - IL 362      
618-564 3 Brookport IL   1015 FRONTIER NORTH, INC. - IL 362      
618-564 4 Brookport IL   318J COMCAST IP PHONE, LLC 362   2009-08-23   
618-564 5 Brookport IL   224C ONVOY, LLC 362   2018-10-01   
618-564 6 Brookport IL   224C ONVOY, LLC 362   2019-09-07   
618-564 7 Brookport IL   624H ONVOY SPECTRUM, LLC 362   2023-06-30   
618-564 8 Brookport IL   495J STRATUS NETWORKS 362   2020-12-19   
618-564 9 Brookport IL   1015 FRONTIER NORTH, INC. - IL 362      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.