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: 630 [Rate centres in NPA 630] [Dial plan for NPA 630]

NXX: 230

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
630-230 A Hinsdale IL HNDLILHIDS0  9329 ILLINOIS BELL TEL CO 358      
630-230 0 Hinsdale IL HNDLILHIDS0  9329 ILLINOIS BELL TEL CO 358      
630-230 1 Hinsdale IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
630-230 2 Hinsdale IL   460K FIRST COMMUNICATIONS, LLC 358      
630-230 3 Hinsdale IL   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
630-230 4 Hinsdale IL   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
630-230 5 Hinsdale IL   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
630-230 6 Hinsdale IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
630-230 7 Hinsdale IL   224C ONVOY, LLC 358      
630-230 8 Hinsdale IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
630-230 9 Hinsdale IL HNDLILHIDS0  9329 ILLINOIS BELL TEL CO 358      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.