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: 854

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-854 A Williams IA WLMSIACORS8  9631 QWEST CORPORATION 632      
515-854 0 Williams IA   221F ONVOY, LLC - IA 632   2008-09-04   
515-854 1 Williams IA   985E BANDWIDTH.COM CLEC, LLC - IA 632   2012-02-10   
515-854 2 Williams IA   9631 QWEST CORPORATION 632      
515-854 3 Williams IA   221F ONVOY, LLC - IA 632   2019-09-20   
515-854 4 Williams IA   221F ONVOY, LLC - IA 632   2013-04-04   
515-854 5 Williams IA   9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632   2014-07-04   
515-854 6 Williams IA   508J CENTURYLINK COMMUNICATIONS, LLC 632   2017-03-31   
515-854 7 Williams IA   221F ONVOY, LLC - IA 632   2016-04-15   
515-854 8 Williams IA   221F ONVOY, LLC - IA 632   2016-04-15   
515-854 9 Williams IA   9631 QWEST CORPORATION 632      

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

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