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: 504

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
630-504 A Bartlett IL RLMDILAGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
630-504 0 Bartlett IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
630-504 1 Bartlett IL RLMDILAGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
630-504 2 Bartlett IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
630-504 3 Bartlett IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
630-504 4 Bartlett IL CHCGILMF2MD  6529 T-MOBILE USA, INC. 358      
630-504 5 Bartlett IL CHCGILMF2MD  6529 T-MOBILE USA, INC. 358      
630-504 6 Bartlett IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
630-504 7 Bartlett IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
630-504 8 Bartlett IL CHCGILMF2MD  6529 T-MOBILE USA, INC. 358      
630-504 9 Bartlett IL CHCGILMF2MD  6529 T-MOBILE USA, INC. 358      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.