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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
630-300 A Naperville IL EGVGILIFDS1  7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
630-300 0 Naperville IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
630-300 1 Naperville IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
630-300 2 Naperville IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
630-300 3 Naperville IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-10-29   
630-300 4 Naperville IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2003-09-30   
630-300 5 Naperville IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
630-300 6 Naperville IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
630-300 7 Naperville IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
630-300 8 Naperville IL   6664 SPRINT SPECTRUM L.P. 358   2003-06-22   
630-300 9 Naperville IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.