Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 280D ALLIANCE COMMUNICATIONS COOPERATIVE, INC. - SD

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
507-755 A East Valley Springs MN VYSPSDXA755  620      
605-474 A North Larchwood SD LRWDIAXO474  640      
605-757 A Valley Springs SD BRNDSDXA582  640      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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