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: 219

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-219 A Onawa IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      
712-219 0 Onawa IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      
712-219 1 Onawa IA   6266 UNITED STATES CELLULAR - IA 630   2019-06-23   
712-219 2 Onawa IA   221F ONVOY, LLC - IA 630   2018-10-19   
712-219 3 Onawa IA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 630   2014-03-14   
712-219 4 Onawa IA   073H TELNYX LLC 630   2020-05-29   
712-219 5 Onawa IA   221F ONVOY, LLC - IA 630   2021-03-08   
712-219 6 Onawa IA   221F ONVOY, LLC - IA 630   2021-03-08   
712-219 7 Onawa IA   508J CENTURYLINK COMMUNICATIONS, LLC 630   2016-12-27   
712-219 8 Onawa IA   221F ONVOY, LLC - IA 630   2018-12-30   
712-219 9 Onawa IA   221F ONVOY, LLC - IA 630   2018-12-30   

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

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