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: 274

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-274 A Sioux City IA SXCYIAMSDS0  9631 QWEST CORPORATION 630      
712-274 0 Sioux City IA SXCYIAMSDS0  9631 QWEST CORPORATION 630      
712-274 1 Sioux City IA SXCYIAMSDS0  9631 QWEST CORPORATION 630      
712-274 2 Sioux City IA SXCYIAMSDS0  9631 QWEST CORPORATION 630      
712-274 3 Sioux City IA SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630   2011-01-23   
712-274 4 Sioux City IA SXCYIAMSDS0  9631 QWEST CORPORATION 630      
712-274 5 Sioux City IA SXCYIAMSDS0  9631 QWEST CORPORATION 630      
712-274 6 Sioux City IA SXCYIAMSDS0  9631 QWEST CORPORATION 630      
712-274 7 Sioux City IA SXCYIAMSDS0  9631 QWEST CORPORATION 630      
712-274 8 Sioux City IA SXCYIAMSDS0  9631 QWEST CORPORATION 630      
712-274 9 Sioux City IA SXCYIAMSDS0  9631 QWEST CORPORATION 630      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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