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: 250

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-250 A Sioux Falls SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-250 0 Sioux Falls SD   162G ONVOY, LLC - SD 640   2017-06-24   
605-250 1 Sioux Falls SD   162G ONVOY, LLC - SD 640   2017-06-24   
605-250 2 Sioux Falls SD   162G ONVOY, LLC - SD 640   2017-06-24   
605-250 3 Sioux Falls SD   162G ONVOY, LLC - SD 640   2017-06-24   
605-250 4 Sioux Falls SD   162G ONVOY, LLC - SD 640   2017-06-24   
605-250 5 Sioux Falls SD   162G ONVOY, LLC - SD 640   2017-06-24   
605-250 6 Sioux Falls SD   162G ONVOY, LLC - SD 640   2017-06-24   
605-250 7 Sioux Falls SD   162G ONVOY, LLC - SD 640   2017-06-24   
605-250 8 Sioux Falls SD   162G ONVOY, LLC - SD 640   2017-06-24   
605-250 9 Sioux Falls SD   162G ONVOY, LLC - SD 640   2017-06-24   

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

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