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: 371

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
630-371 A Hinsdale IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
630-371 0 Hinsdale IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
630-371 1 Hinsdale IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
630-371 2 Hinsdale IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
630-371 3 Hinsdale IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
630-371 4 Hinsdale IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
630-371 5 Hinsdale IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
630-371 6 Hinsdale IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2001-09-09   
630-371 7 Hinsdale IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
630-371 8 Hinsdale IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2018-09-30   
630-371 9 Hinsdale IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.