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.

Switch: OLNYILABWMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
618-403 A Flora IL 478J NUSO, LLC 978      
618-403 5 Flora IL 478J NUSO, LLC 978   2016-04-02   
618-516 5 Fairfield IL 478J NUSO, LLC 978   2016-03-27   
618-723 5 Noble IL 478J NUSO, LLC 978   2016-03-27   
618-895 5 Wayne City IL 478J NUSO, LLC 978   2016-03-27   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.