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: 293

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-293 A Romeoville IL RMVLILRMDS0  9329 ILLINOIS BELL TEL CO 358      
815-293 0 Romeoville IL   9329 ILLINOIS BELL TEL CO 358      
815-293 1 Romeoville IL   9329 ILLINOIS BELL TEL CO 358      
815-293 2 Romeoville IL   9329 ILLINOIS BELL TEL CO 358      
815-293 3 Romeoville IL   9329 ILLINOIS BELL TEL CO 358      
815-293 4 Romeoville IL   9329 ILLINOIS BELL TEL CO 358      
815-293 5 Romeoville IL   460K FIRST COMMUNICATIONS, LLC 358   2014-09-20   
815-293 6 Romeoville IL   318J COMCAST IP PHONE, LLC 358   2008-10-05   
815-293 7 Romeoville IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   
815-293 8 Romeoville IL   224C ONVOY, LLC 358   2019-07-07   
815-293 9 Romeoville IL   224C ONVOY, LLC 358   2019-07-07   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.