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.

NPA: 605 [Rate centres in NPA 605] [Dial plan for NPA 605]

NXX: 299

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-299 A Mitchell SD SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640      
605-299 0 Mitchell SD SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640      
605-299 1 Mitchell SD SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2010-02-19   
605-299 2 Mitchell SD SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2010-10-09   
605-299 3 Mitchell SD SXFLSDCOQMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 640   2012-03-16   
605-299 4 Mitchell SD SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640      
605-299 5 Mitchell SD SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2012-09-10   
605-299 6 Mitchell SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2010-11-15   
605-299 7 Mitchell SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2009-05-28   
605-299 8 Mitchell SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2012-12-19   
605-299 9 Mitchell SD SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2015-05-28   

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.