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.

McIntosh, SD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
605-273 A MCINSDCODS0  9631 QWEST CORPORATION 640      
605-273 0 MCINSDCODS0  9631 QWEST CORPORATION 640      
605-273 1 MCINSDCODS0  9631 QWEST CORPORATION 640      
605-273 2 SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2012-01-13   
605-273 3 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2012-12-15   
605-273 4 MCINSDCODS0  9631 QWEST CORPORATION 640      
605-273 5 SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2015-07-24   
605-273 6 SXFLSDCOQMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 640   2016-11-11   
605-273 7 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2009-05-28   
605-273 8 SXFLSDPSDS1  580H AIRUS, INC. - SD 640   2019-05-23   
605-273 9 MCINSDCODS0  9631 QWEST CORPORATION 640      
605-524 A MRTWSDCORS2  9631 QWEST CORPORATION 640      
605-524 0 MRTWSDCORS2  9631 QWEST CORPORATION 640      
605-524 1 MRTWSDCORS2  9631 QWEST CORPORATION 640      
605-524 2 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2019-09-13   
605-524 3 MRTWSDCORS2  9631 QWEST CORPORATION 640      
605-524 4 SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2018-05-17   
605-524 5 SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2018-05-17   
605-524 6 SXFLSDCOLMD  508J CENTURYLINK COMMUNICATIONS, LLC 640   2017-06-03   
605-524 7 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2009-05-28   
605-524 8 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2011-02-16   
605-524 9 MRTWSDCORS2  9631 QWEST CORPORATION 640      
605-640 A SXFLSDPSDS1  580H AIRUS, INC. - SD 640      
605-640 0 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2021-07-08   
605-640 1 SXFLSDPSDS1  580H AIRUS, INC. - SD 640   2019-12-02   
605-640 2 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2021-02-12   
605-640 3 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2021-02-12   
605-640 4 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2020-10-23   
605-640 5 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2020-08-21   
605-640 6 SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2020-08-21   
605-640 7 SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2023-01-07   
605-640 8 SXFLSDCOXWX  506J TWILIO INTERNATIONAL, INC. 640   2021-02-22   
605-640 9 SXFLSDPS0MD  073H TELNYX LLC 640   2019-12-03   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.