Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 071J WIDE VOICE, LLC - SD

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
605-501 A Sioux Falls SD SXFLSDCOX0Y  640      
605-501 1 Sioux Falls SD SXFLSDCOX0Y  640   2019-12-19   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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