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.

Switch: WNNRSDXADS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
402-653 A South Bonesteel NE 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
402-774 A South Burke NE 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
402-974 A South Gregory NE 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-473 A Reliance SD 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-557 A Clearfield SD 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-654 A Bonesteel SD 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-669 A Murdo SD 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-683 A Vivian SD 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-747 A Rosebud SD 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-775 A Burke SD 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-835 A Gregory SD 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-842 A Winner SD 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-856 A Mission SD 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      
605-879 A Witten SD 1686 VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS 640      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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