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.

Switch: CHCGILCGDS1

<< 1 2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
312-995 5 Chicago Zone 01-Calumet IL 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2014-10-13   
312-995 6 Chicago Zone 01-Calumet IL 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2014-10-13   
312-995 7 Chicago Zone 01-Calumet IL 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2014-10-13   
312-995 8 Chicago Zone 01-Calumet IL 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2014-10-13   
630-422 6 Bensenville IL 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2012-08-27   
630-644 5 Bensenville IL 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2013-12-16   
773-824 A Chicago Zone 03-Kildare IL 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-824 2 Chicago Zone 03-Kildare IL 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-824 3 Chicago Zone 03-Kildare IL 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-824 4 Chicago Zone 03-Kildare IL 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
847-789 5 Des Plaines IL 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2003-10-22   

<< 1 2

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.