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: 979

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-979 A North Sioux City SD SXCYIA78X8X  073H TELNYX LLC 630      
605-979 0 North Sioux City SD SXCYIA78X8X  073H TELNYX LLC 630      
605-979 1 North Sioux City SD SXCYIADT9MD  162G ONVOY, LLC - SD 630      
605-979 2 North Sioux City SD SXCYIADT9MD  162G ONVOY, LLC - SD 630      
605-979 3 North Sioux City SD SXCYIADT9MD  162G ONVOY, LLC - SD 630      
605-979 4 North Sioux City SD SXCYIADT9MD  162G ONVOY, LLC - SD 630      
605-979 5 North Sioux City SD SXCYIADT9MD  162G ONVOY, LLC - SD 630      
605-979 6 North Sioux City SD SXCYIADT9MD  162G ONVOY, LLC - SD 630      
605-979 7 North Sioux City SD SXCYIADT9MD  162G ONVOY, LLC - SD 630      
605-979 8 North Sioux City SD SXCYIADT9MD  162G ONVOY, LLC - SD 630      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.