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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 693G TELEPORT COMMUNICATIONS AMERICA SD-LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
605-269 6 Spearfish SD SXFLSDCOXMD  640      
605-308 5 North Sioux City SD SXCYIADTKMD  630      
605-450 3 Redfield SD SXFLSDCOXMD  640      
605-461 5 Huron SD SXFLSDCOXMD  640      
605-499 3 Sturgis SD SXFLSDCOXMD  640      
605-550 6 Mitchell SD SXFLSDCOXMD  640      
605-622 1 Aberdeen SD SXFLSDCOXMD  640      
605-646 6 Rapid City SD SXFLSDCOXMD  640      
605-653 7 Yankton SD SXFLSDCOXMD  640      
605-699 2 Belle Fourche SD SXFLSDCOXMD  640      
605-730 7 Chamberlain SD SXFLSDCOXMD  640      
605-741 6 Vermillion SD SXFLSDCOXMD  640      
605-776 6 Pierre SD SXFLSDCOXMD  640      
605-777 6 Harrisburg-Tea SD SXFLSDCOXMD  640      
605-906 A Sioux Falls SD SXFLSDCOXMD  640      
605-906 6 Sioux Falls SD SXFLSDCOXMD  640      
605-910 6 Sioux Falls SD SXFLSDCOXMD  640      
605-924 5 Milbank SD SXFLSDCOXMD  640      
605-954 6 Watertown SD SXFLSDCOXMD  640      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.