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: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 658

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-658 A Newark IL OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
815-658 0 Newark IL CHCGILWUJMD  073H TELNYX LLC 358   2019-09-14   
815-658 1 Newark IL CHCGIL24XMD  495J STRATUS NETWORKS 358   2020-09-26   
815-658 2 Newark IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-09-10   
815-658 4 Newark IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2020-04-11   
815-658 5 Newark IL CHCGILNEXIX  506J TWILIO INTERNATIONAL, INC. 358   2021-04-15   
815-658 6 Newark IL OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2019-09-09   
815-658 8 Newark IL   624H ONVOY SPECTRUM, LLC 358   2024-04-28   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.