Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Fort Thompson, SD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
605-245 A KMBLSDXADS2  1670 MIDSTATE COMMUNICATIONS, INC. 640      
605-417 A FTTHSDXADS2  424F NATIVE AMERICAN TELECOM, LLC - SD 640      
605-417 0   424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 1   424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 2   424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 3   424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 4   424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 5   424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 6   424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 7   424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 8   424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 9   424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-477 A FTTHSDXADS2  424F NATIVE AMERICAN TELECOM, LLC - SD 640      
605-752 A SXFLSDPSCMD  516J TON80 COMMUNICATIONS, LLC 640      
605-752 9   516J TON80 COMMUNICATIONS, LLC 640   2022-03-16   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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