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: 486

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-486 A Lawrenceville IL OLNYILABTMD  197D VONAGE AMERICA LLC 978      
618-486 0 Lawrenceville IL   197D VONAGE AMERICA LLC 978   2019-10-31   
618-486 1 Lawrenceville IL   224C ONVOY, LLC 978   2020-03-13   
618-486 6 Lawrenceville IL   224C ONVOY, LLC 978   2021-02-26   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.