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: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-356 A Atlantic IA OMAKNEYW6MD  965H FRACTEL, LLC 644      
712-356 0 Atlantic IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2021-04-23   
712-356 1 Atlantic IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2021-04-23   
712-356 2 Atlantic IA BLLVNEBL5MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 644   2020-05-16   
712-356 3 Atlantic IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2020-10-02   
712-356 4 Atlantic IA OMAHNENWX2Y  624H ONVOY SPECTRUM, LLC 644   2021-02-25   
712-356 5 Atlantic IA OMAHNENWX2Y  624H ONVOY SPECTRUM, LLC 644   2021-02-25   
712-356 6 Atlantic IA OMAHNENWX2Y  624H ONVOY SPECTRUM, LLC 644   2021-02-25   
712-356 7 Atlantic IA OMAHNENWX2Y  624H ONVOY SPECTRUM, LLC 644   2021-02-25   
712-356 8 Atlantic IA OMAHNENWXTX  985E BANDWIDTH.COM CLEC, LLC - IA 644   2020-06-27   
712-356 9 Atlantic IA OMAKNEYW6MD  965H FRACTEL, LLC 644   2020-02-19   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.