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.

De Smet, SD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
605-854 A DESMSDCORS1  9631 QWEST CORPORATION 640      
605-854 0 DESMSDCORS1  9631 QWEST CORPORATION 640      
605-854 1 SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640      
605-854 2 SXFLSDPSDS1  580H AIRUS, INC. - SD 640      
605-854 3 DESMSDCORS1  9631 QWEST CORPORATION 640      
605-854 4 SXFLSDCOQMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 640      
605-854 5 SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-854 6 SXFLSDCOWMD  920F MCC TELEPHONY OF THE MID-WEST, LLC - SD 640      
605-854 7 SXFLSDCOLMD  508J CENTURYLINK COMMUNICATIONS, LLC 640      
605-854 8 SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-854 9 DESMSDCORS1  9631 QWEST CORPORATION 640      
605-860 A SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-860 0 SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-860 1 SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-860 2 SXFLSDCOX6X  363J VALLEY COMMUNICATIONS, INC. D/B/A VALLEY FIBERCOM 640      
605-860 3 SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-860 4 SXFLSDPS0MD  073H TELNYX LLC 640      
605-860 5 SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-860 7 SXFLSDCOX0X  624H ONVOY SPECTRUM, LLC 640      
605-860 8 SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-860 9 SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-861 A SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-861 0 SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-861 1 SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-861 2 SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-861 3 SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640      
605-861 4 SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-861 5 SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-861 6 SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-861 7 SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-861 8 SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-861 9 SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.