Local Calling Guide

Area code/prefix search

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OCN: 580H AIRUS, INC. - SD

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
605-960 2 Huron SD SXFLSDPSDS1  640   2018-03-01   
605-961 2 Sioux Falls SD SXFLSDPSDS1  640   2018-12-22   
605-961 9 Sioux Falls SD SXFLSDPSDS1  640   2020-06-19   
605-971 9 Aberdeen SD SXFLSDPSDS1  640   2021-03-01   
605-991 A Milbank SD SXFLSDPSDS1  640      
605-991 1 Milbank SD SXFLSDPSDS1  640   2021-05-22   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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