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.

Elk Point, SD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
605-205 A SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-205 0 SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-205 1 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2012-12-15   
605-205 2 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2012-12-15   
605-205 3 SXFLSDPSDS1  580H AIRUS, INC. - SD 640   2019-05-11   
605-205 4 SXFLSDPS0MD  073H TELNYX LLC 640   2019-09-29   
605-205 5 SXFLSDPSDS1  580H AIRUS, INC. - SD 640   2019-12-21   
605-205 6 SXFLSDCOQMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 640   2016-11-11   
605-205 7 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2019-11-07   
605-205 8 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2019-11-07   
605-205 9 SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2020-03-14   
605-356 A ELPNSDCORS1  9631 QWEST CORPORATION 640      
605-356 0 ELPNSDCORS1  9631 QWEST CORPORATION 640      
605-356 1 ELPNSDCORS1  9631 QWEST CORPORATION 640      
605-356 2 ELPNSDCORS1  9631 QWEST CORPORATION 640      
605-356 3 ELPNSDCORS1  9631 QWEST CORPORATION 640      
605-356 4 ELPNSDCORS1  9631 QWEST CORPORATION 640      
605-356 5 ELPNSDCORS1  9631 QWEST CORPORATION 640      
605-356 6 SXFLSDCOLMD  508J CENTURYLINK COMMUNICATIONS, LLC 640   2017-06-08   
605-356 7 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2011-07-05   
605-356 8 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2009-05-28   
605-356 9 ELPNSDCORS1  9631 QWEST CORPORATION 640      
605-761 A YNTNSDBJDS0  7024 CLARITY TELECOM, LLC DBA BLUEPEAK 640      
605-952 A SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640      
605-952 0 SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2011-12-30   
605-952 1 SXFLSDCOX1X  073H TELNYX LLC 640   2021-03-07   
605-952 2 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2020-12-07   
605-952 3 SXFLSDCOX0X  624H ONVOY SPECTRUM, LLC 640   2024-12-20   
605-952 4 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2021-07-08   
605-952 5 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2019-09-13   
605-952 6 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2020-10-23   
605-952 7 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2021-03-13   
605-952 8 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2021-03-13   
605-952 9 SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2023-01-07   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.