Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 605 [Rate centres in NPA 605] [Dial plan for NPA 605]

NXX: 734

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-734 A Chamberlain SD CHBLSDCORS1  9631 QWEST CORPORATION 640      
605-734 0 Chamberlain SD   9631 QWEST CORPORATION 640      
605-734 1 Chamberlain SD   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2010-11-15   
605-734 2 Chamberlain SD   162G ONVOY, LLC - SD 640   2011-09-15   
605-734 3 Chamberlain SD   9631 QWEST CORPORATION 640      
605-734 4 Chamberlain SD   9631 QWEST CORPORATION 640      
605-734 5 Chamberlain SD   9631 QWEST CORPORATION 640      
605-734 6 Chamberlain SD   9631 QWEST CORPORATION 640      
605-734 7 Chamberlain SD   9631 QWEST CORPORATION 640      
605-734 8 Chamberlain SD   162G ONVOY, LLC - SD 640   2009-05-28   
605-734 9 Chamberlain SD   9631 QWEST CORPORATION 640      

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

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