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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OCN: 1677 SIOUX VALLEY TEL DBA GOLDEN WEST TELECOMMUNICATION

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
605-363 A Humboldt SD HMBLSDXARS1  640      
605-428 A Dell Rapids SD DLRPSDXADS1  640      
605-428 0 Dell Rapids SD   640      
605-428 1 Dell Rapids SD   640      
605-428 2 Dell Rapids SD   640      
605-428 3 Dell Rapids SD   640      
605-428 4 Dell Rapids SD   640      
605-428 5 Dell Rapids SD   640      
605-428 6 Dell Rapids SD   640      
605-428 7 Dell Rapids SD   640      
605-428 9 Dell Rapids SD   640      
605-446 A Colton SD COTNSDXARS1  640      
605-446 0 Colton SD   640      
605-446 1 Colton SD   640      
605-446 2 Colton SD   640      
605-446 3 Colton SD   640      
605-446 4 Colton SD   640      
605-446 5 Colton SD   640      
605-446 6 Colton SD   640      
605-446 7 Colton SD   640      
605-446 9 Colton SD   640      
605-942 A Plankinton SD PLTNSDXARS1  640      
605-946 A Corsica SD CRSCSDXADS1  640      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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