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

NXX: 655

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-655 A Yankton SD YNTNSDCODS1  9631 QWEST CORPORATION 640      
605-655 0 Yankton SD YNTNSDCODS1  9631 QWEST CORPORATION 640      
605-655 1 Yankton SD YNTNSDCODS1  9631 QWEST CORPORATION 640      
605-655 2 Yankton SD SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2007-04-22   
605-655 3 Yankton SD SXFLSDCOQMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 640   2008-01-25   
605-655 4 Yankton SD SXFLSDTUCM0  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2011-09-06   
605-655 5 Yankton SD YNTNSDCODS1  9631 QWEST CORPORATION 640      
605-655 6 Yankton SD YNTNSDCODS1  9631 QWEST CORPORATION 640      
605-655 7 Yankton SD YNTNSDCODS1  9631 QWEST CORPORATION 640      
605-655 8 Yankton SD RPCYSDCO4MD  162G ONVOY, LLC - SD 640   2009-05-28   
605-655 9 Yankton SD YNTNSDCODS1  9631 QWEST CORPORATION 640      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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