Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 319 [Rate centres in NPA 319] [Dial plan for NPA 319]

NXX: 264

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-264 A Oelwein IA CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
319-264 0 Oelwein IA   6266 UNITED STATES CELLULAR - IA 635   2017-10-05   
319-264 1 Oelwein IA   221F ONVOY, LLC - IA 635   2017-11-23   
319-264 2 Oelwein IA   221F ONVOY, LLC - IA 635   2018-04-13   
319-264 3 Oelwein IA   073H TELNYX LLC 635   2019-06-16   
319-264 4 Oelwein IA   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 635   2018-05-14   
319-264 5 Oelwein IA   939H COMMIO, LLC 635   2022-11-19   
319-264 6 Oelwein IA   221F ONVOY, LLC - IA 635   2019-09-19   
319-264 7 Oelwein IA   508J CENTURYLINK COMMUNICATIONS, LLC 635   2017-10-07   
319-264 8 Oelwein IA   221F ONVOY, LLC - IA 635   2020-01-27   
319-264 9 Oelwein IA   6266 UNITED STATES CELLULAR - IA 635   2021-02-07   

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

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