Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 605 [Rate centres in NPA 605] [Dial plan for NPA 605]

NXX: 443

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-443 A Spearfish SD RPCYSDIPGT0  7076 MIDCONTINENT COMMUNICATIONS - SD 640      
605-443 0 Spearfish SD RPCYSDIPGT0  7076 MIDCONTINENT COMMUNICATIONS - SD 640      
605-443 3 Spearfish SD SXFLSDCOQMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 640   2015-03-20   
605-443 4 Spearfish SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2020-10-23   
605-443 5 Spearfish SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2020-10-23   
605-443 7 Spearfish SD RPCYSDCO4MD  162G ONVOY, LLC - SD 640   2013-12-16   
605-443 8 Spearfish SD RPCYSDCO4MD  162G ONVOY, LLC - SD 640   2013-12-16   

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

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