Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 357

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-357 A Red Oak IA OMAHNENWXXX  593K MCC TELEPHONY LLC 644      
712-357 0 Red Oak IA   221F ONVOY, LLC - IA 644   2017-05-19   
712-357 1 Red Oak IA   593K MCC TELEPHONY LLC 644   2010-05-04   
712-357 2 Red Oak IA   444G AUREON COMMUNICATIONS, LLC 644   2018-09-23   
712-357 3 Red Oak IA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 644   2010-10-01   
712-357 4 Red Oak IA   8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644   2017-09-03   
712-357 5 Red Oak IA   985E BANDWIDTH.COM CLEC, LLC - IA 644   2012-05-21   
712-357 6 Red Oak IA   508J CENTURYLINK COMMUNICATIONS, LLC 644   2015-01-22   
712-357 7 Red Oak IA   221F ONVOY, LLC - IA 644   2013-04-04   
712-357 8 Red Oak IA   221F ONVOY, LLC - IA 644   2016-04-09   
712-357 9 Red Oak IA   221F ONVOY, LLC - IA 644   2016-04-09   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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