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: 574

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-574 A Hill City SD HLCYSDCORS1  9631 QWEST CORPORATION 640      
605-574 0 Hill City SD RPCYSDCOGMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2011-04-12   
605-574 1 Hill City SD SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2011-10-01   
605-574 2 Hill City SD HLCYSDCORS1  9631 QWEST CORPORATION 640      
605-574 3 Hill City SD HLCYSDCORS1  9631 QWEST CORPORATION 640      
605-574 4 Hill City SD HLCYSDCORS1  9631 QWEST CORPORATION 640      
605-574 5 Hill City SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2012-12-19   
605-574 6 Hill City SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2013-12-18   
605-574 7 Hill City SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2009-05-28   
605-574 8 Hill City SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2011-10-28   
605-574 9 Hill City SD HLCYSDCORS1  9631 QWEST CORPORATION 640      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.