Local Calling Guide

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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-630 9 Mitchell SD   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-631 A Spearfish SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-631 0 Spearfish SD   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-631 9 Spearfish SD   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-632 A Lake Preston SD SXFLSDCOWMD  920F MCC TELEPHONY OF THE MID-WEST, LLC - SD 640      
605-632 1 Lake Preston SD   920F MCC TELEPHONY OF THE MID-WEST, LLC - SD 640   2010-08-14   
605-633 A Flandreau SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-633 0 Flandreau SD   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-633 1 Flandreau SD   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-633 2 Flandreau SD   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2019-12-26   
605-633 3 Flandreau SD   162G ONVOY, LLC - SD 640   2021-07-08   
605-633 4 Flandreau SD   073H TELNYX LLC 640   2019-09-29   
605-633 5 Flandreau SD   162G ONVOY, LLC - SD 640   2020-08-21   
605-633 6 Flandreau SD   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2021-03-09   
605-633 7 Flandreau SD   162G ONVOY, LLC - SD 640   2013-12-16   
605-633 8 Flandreau SD   162G ONVOY, LLC - SD 640   2013-12-16   
605-633 9 Flandreau SD   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-634 A Cavour SD SXFLSDPSCMD  516J TON80 COMMUNICATIONS, LLC 640      
605-634 0 Cavour SD   162G ONVOY, LLC - SD 640   2023-08-20   
605-634 1 Cavour SD   5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2023-01-07   
605-634 2 Cavour SD   516J TON80 COMMUNICATIONS, LLC 640   2022-03-16   
605-634 3 Cavour SD   624H ONVOY SPECTRUM, LLC 640   2024-12-20   
605-635 A Doland SD DOLDSDXARS3  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-635 0 Doland SD   1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-635 1 Doland SD   1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-635 2 Doland SD   1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-635 3 Doland SD   1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-635 4 Doland SD   1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-635 5 Doland SD   1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-635 6 Doland SD   1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-635 7 Doland SD   815E JAMES VALLEY WIRELESS, LLC 640      
605-635 8 Doland SD   1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-635 9 Doland SD   1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-636 A Madison SD MDSNSDCERS1  9631 QWEST CORPORATION 640      
605-636 0 Madison SD   9631 QWEST CORPORATION 640      
605-636 1 Madison SD   5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2023-01-07   
605-636 2 Madison SD   162G ONVOY, LLC - SD 640   2020-08-21   
605-636 3 Madison SD   162G ONVOY, LLC - SD 640   2012-12-15   
605-636 4 Madison SD   162G ONVOY, LLC - SD 640   2012-12-15   
605-636 5 Madison SD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 640   2016-11-28   
605-636 6 Madison SD   162G ONVOY, LLC - SD 640   2011-07-05   
605-636 7 Madison SD   162G ONVOY, LLC - SD 640   2009-05-28   
605-636 8 Madison SD   162G ONVOY, LLC - SD 640   2020-08-21   
605-636 9 Madison SD   9631 QWEST CORPORATION 640      
605-637 A New Effington SD NWEFSDXADS1  1674 RC TECHNOLOGIES 640      
605-638 A Vermillion SD VRMLSDCODS0  9631 QWEST CORPORATION 640      
605-638 0 Vermillion SD   9631 QWEST CORPORATION 640      
605-638 1 Vermillion SD   9631 QWEST CORPORATION 640      
605-638 2 Vermillion SD   516J TON80 COMMUNICATIONS, LLC 640   2022-04-01   
605-638 3 Vermillion SD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 640   2016-11-28   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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