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.

OCN: 4092 COMMCHOICE OF IOWA, LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
712-433 A Onawa IA ONAWIA01RS0  630      
712-455 A Whiting IA WHNGIAACRL0  630      
712-893 A Danbury IA DNBRIAAARS0  630      

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

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