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: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 412

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-412 A Dow City IA OMAHNENWXPX  221F ONVOY, LLC - IA 644      
712-412 1 Dow City IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2023-10-01   
712-412 2 Dow City IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2021-05-10   
712-412 3 Dow City IA OMAHNENWX2Y  624H ONVOY SPECTRUM, LLC 644   2021-11-04   
712-412 4 Dow City IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2018-12-22   
712-412 5 Dow City IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2021-04-23   
712-412 6 Dow City IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2021-04-23   
712-412 8 Dow City IA OMAHNENWX2Y  624H ONVOY SPECTRUM, LLC 644   2021-07-18   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.