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: CDRRIAAXQMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
319-229 1 Waterloo IA 444G AUREON COMMUNICATIONS, LLC 635   2014-12-26   
319-346 0 Parkersburg IA 444G AUREON COMMUNICATIONS, LLC 635   2019-06-27   
319-499 9 Iowa City IA 444G AUREON COMMUNICATIONS, LLC 635   2012-08-16   
319-553 8 Cedar Falls IA 444G AUREON COMMUNICATIONS, LLC 635   2014-12-26   
319-596 4 Waverly IA 444G AUREON COMMUNICATIONS, LLC 635   2015-11-13   
319-727 5 Coggon IA 444G AUREON COMMUNICATIONS, LLC 635   2020-01-20   
319-777 A Cedar Rapids IA 444G AUREON COMMUNICATIONS, LLC 635      
319-777 7 Cedar Rapids IA 444G AUREON COMMUNICATIONS, LLC 635   2011-05-15   
563-202 9 Decorah IA 444G AUREON COMMUNICATIONS, LLC 635   2015-07-20   
563-412 0 West Union IA 444G AUREON COMMUNICATIONS, LLC 635   2014-01-09   
563-794 9 Waukon IA 444G AUREON COMMUNICATIONS, LLC 635   2016-11-10   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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