Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Waubay, SD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
605-435 A SXFLSDPSDS0  7076 MIDCONTINENT COMMUNICATIONS. - SD 640      
605-435 0 SXFLSDPSDS0  7076 MIDCONTINENT COMMUNICATIONS. - SD 640      
605-435 3 SXFLSDPSDS0  7076 MIDCONTINENT COMMUNICATIONS. - SD 640      
605-435 5 SXFLSDPSDS0  7076 MIDCONTINENT COMMUNICATIONS. - SD 640      
605-435 8 SXFLSDPSDS0  7076 MIDCONTINENT COMMUNICATIONS. - SD 640      
605-435 9 SXFLSDPSDS0  7076 MIDCONTINENT COMMUNICATIONS. - SD 640      
605-947 A WBSTSDXADS0  1651 INTERSTATE TELECOM COOP, INC. - SD 640      

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

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