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: CHCGILWUDS4

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
219-237 A Highland IN 279F PEERLESS NETWORK OF INDIANA, LLC - IN 358   2011-08-01   
224-649 A Northbrook IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2008-09-01   
312-508 A Chicago Zone 01-Calumet IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2012-05-10   
312-509 A Chicago Zone 01-Calumet IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2012-04-27   
312-667 A Chicago Zone 01-Calumet IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2012-10-22   
312-878 A Chicago Zone 01-Calumet IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2008-03-27   
331-210 A Geneva IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2012-04-27   
630-869 A Downers Grove IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2008-09-01   
773-897 A Chicago Zone 02-Edgewater IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2008-05-19   
773-945 A Chicago Zone 05-Austin IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2008-09-01   
779-209 A Sandwich IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2012-10-22   

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

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