Local Calling Guide

Area code/prefix search

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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 FTTHSDXADS2  424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 1 FTTHSDXADS2  424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 2 FTTHSDXADS2  424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 3 FTTHSDXADS2  424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 4 FTTHSDXADS2  424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 5 FTTHSDXADS2  424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 6 FTTHSDXADS2  424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 7 FTTHSDXADS2  424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 8 FTTHSDXADS2  424F NATIVE AMERICAN TELECOM, LLC - SD 640   2017-05-04   
605-417 9 FTTHSDXADS2  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 SXFLSDPSCMD  516J TON80 COMMUNICATIONS, LLC 640   2022-03-16   

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

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