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]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-877 2 Rapid City SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2008-12-11   
605-877 3 Rapid City SD SXFLSDCOQMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 640   2006-08-11   
605-877 4 Rapid City SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2009-02-19   
605-877 5 Rapid City SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2009-02-19   
605-877 6 Rapid City SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2009-02-19   
605-877 7 Rapid City SD RPCYSDCODS1  9631 QWEST CORPORATION 640      
605-877 8 Rapid City SD RPCYSDCODS1  9631 QWEST CORPORATION 640      
605-877 9 Rapid City SD RPCYSDCODS1  9631 QWEST CORPORATION 640      
605-878 A Watertown SD WTTWSDBXGT0  7076 MIDCONTINENT COMMUNICATIONS. - SD 640      
605-879 A Witten SD WNNRSDXADS1  1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-880 A Watertown SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-881 A Watertown SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-882 A Watertown SD WTTWSDCODS0  9631 QWEST CORPORATION 640      
605-883 A Wolsey SD WNSCSDXADS0  1676 SANTEL COMMUNICATIONS COOPERATIVE, INC. - SD 640      
605-884 A Watertown SD WTTWSDCODS0  9631 QWEST CORPORATION 640      
605-884 0 Watertown SD WTTWSDCODS0  9631 QWEST CORPORATION 640      
605-884 1 Watertown SD WTTWSDCODS0  9631 QWEST CORPORATION 640      
605-884 2 Watertown SD WTTWSDCODS0  9631 QWEST CORPORATION 640      
605-884 3 Watertown SD WTTWSDCODS0  9631 QWEST CORPORATION 640      
605-884 4 Watertown SD WTTWSDCODS0  9631 QWEST CORPORATION 640      
605-884 5 Watertown SD SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2004-06-03   
605-884 6 Watertown SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2007-10-01   
605-884 7 Watertown SD SXFLSDCOQMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 640   2008-01-25   
605-884 8 Watertown SD WTTWSDCODS0  9631 QWEST CORPORATION 640      
605-884 9 Watertown SD SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2008-07-29   
605-885 A Houghton SD HGTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-885 0 Houghton SD HGTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-885 1 Houghton SD HGTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-885 2 Houghton SD HGTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-885 3 Houghton SD HGTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-885 4 Houghton SD HGTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-885 5 Houghton SD HGTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-885 6 Houghton SD HGTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-885 7 Houghton SD ABRDSDCO0MD  815E JAMES VALLEY WIRELESS, LLC 640      
605-885 8 Houghton SD HGTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-885 9 Houghton SD HGTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-886 A Watertown SD WTTWSDCODS0  9631 QWEST CORPORATION 640      
605-887 A Mellette SD MLLTSDXARS3  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-887 0 Mellette SD MLLTSDXARS3  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-887 1 Mellette SD MLLTSDXARS3  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-887 2 Mellette SD MLLTSDXARS3  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-887 3 Mellette SD MLLTSDXARS3  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-887 4 Mellette SD MLLTSDXARS3  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-887 5 Mellette SD MLLTSDXARS3  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-887 6 Mellette SD MLLTSDXARS3  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-887 7 Mellette SD ABRDSDCO0MD  815E JAMES VALLEY WIRELESS, LLC 640      
605-887 8 Mellette SD MLLTSDXARS3  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-887 9 Mellette SD MLLTSDXARS3  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-888 A Chamberlain SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-888 3 Chamberlain SD   162G ONVOY, LLC - SD 640   2025-04-18   
605-888 4 Chamberlain SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2014-04-18   
605-888 5 Chamberlain SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2013-09-15   
605-888 6 Chamberlain SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2013-01-17   
605-888 7 Chamberlain SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2013-01-17   
605-888 8 Chamberlain SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2013-01-18   
605-888 9 Chamberlain SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2014-04-18   
605-889 A Pollock SD HRRDSDXADS1  1685 VALLEY TELECOM COOP. ASSN., INC. 640      
605-890 A Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-890 0 Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-890 1 Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-890 2 Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-890 3 Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-890 5 Hot Springs SD   145J TERRA NOVA TELECOM INC. 640   2025-08-01   
605-890 6 Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-890 9 Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-891 A Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-891 0 Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-891 1 Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-891 3 Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-891 4 Hot Springs SD RPCYSDCO5MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2017-11-24   
605-891 5 Hot Springs SD RPCYSDCO5MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2017-11-24   
605-891 7 Hot Springs SD RPCYSDCO5MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2022-05-20   
605-891 8 Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-891 9 Hot Springs SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-892 A Belle Fourche SD BLFRSDCORS1  9631 QWEST CORPORATION 640      
605-892 0 Belle Fourche SD BLFRSDCORS1  9631 QWEST CORPORATION 640      
605-892 1 Belle Fourche SD BLFRSDCORS1  9631 QWEST CORPORATION 640      
605-892 2 Belle Fourche SD BLFRSDCORS1  9631 QWEST CORPORATION 640      
605-892 3 Belle Fourche SD BLFRSDCORS1  9631 QWEST CORPORATION 640      
605-892 4 Belle Fourche SD BLFRSDCORS1  9631 QWEST CORPORATION 640      
605-892 5 Belle Fourche SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2006-07-03   
605-892 6 Belle Fourche SD BLFRSDCORS1  9631 QWEST CORPORATION 640      
605-892 7 Belle Fourche SD BLFRSDCORS1  9631 QWEST CORPORATION 640      
605-892 8 Belle Fourche SD SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2006-11-01   
605-892 9 Belle Fourche SD BLFRSDCORS1  9631 QWEST CORPORATION 640      
605-893 A Miller SD MLLRSD03GT0  7076 MIDCONTINENT COMMUNICATIONS. - SD 640      
605-894 A Pukwana SD KMBLSDXADS2  1670 MIDSTATE COMMUNICATIONS, INC. 640      
605-895 A Presho SD KNBCSDXADS2  1668 KENNEBEC TEL. CO. 640      
605-897 A Turton SD TRTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-897 0 Turton SD TRTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-897 1 Turton SD TRTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-897 2 Turton SD TRTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-897 3 Turton SD TRTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-897 4 Turton SD TRTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-897 5 Turton SD TRTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-897 6 Turton SD TRTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-897 7 Turton SD ABRDSDCO0MD  815E JAMES VALLEY WIRELESS, LLC 640      
605-897 8 Turton SD TRTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-897 9 Turton SD TRTNSDXARS0  1664 JAMES VALLEY COOPERATIVE TELEPHONE COMPANY 640      
605-898 A Iroquois SD SXFLSDPSCMD  516J TON80 COMMUNICATIONS, LLC 640      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 >>

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.