Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 515 [Rate centres in NPA 515] [Dial plan for NPA 515]

NXX: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-428 A Dawson IA PRRYIACORS4  9631 QWEST CORPORATION 632      
515-428 0 Dawson IA   985E BANDWIDTH.COM CLEC, LLC - IA 632   2008-11-29   
515-428 1 Dawson IA   985E BANDWIDTH.COM CLEC, LLC - IA 632   2014-03-17   
515-428 2 Dawson IA   985E BANDWIDTH.COM CLEC, LLC - IA 632   2010-03-05   
515-428 3 Dawson IA   221F ONVOY, LLC - IA 632   2012-12-14   
515-428 4 Dawson IA   221F ONVOY, LLC - IA 632   2012-12-14   
515-428 5 Dawson IA   221F ONVOY, LLC - IA 632   2013-01-23   
515-428 6 Dawson IA   985E BANDWIDTH.COM CLEC, LLC - IA 632   2015-05-16   
515-428 7 Dawson IA   221F ONVOY, LLC - IA 632   2008-08-29   
515-428 8 Dawson IA   9631 QWEST CORPORATION 632      
515-428 9 Dawson IA   9631 QWEST CORPORATION 632      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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