Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Estelline, SD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
605-686 A BKNGSDXB0MD  920F MCC TELEPHONY OF THE MID-WEST, LLC - SD 640      
605-686 1 BKNGSDXB0MD  920F MCC TELEPHONY OF THE MID-WEST, LLC - SD 640   2010-09-26   
605-686 6   145J TERRA NOVA TELECOM INC. 640   2025-08-01   
605-873 A BKNGSDXBDS0  1651 INTERSTATE TELECOM COOP, INC. - SD 640      

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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