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: 812

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-812 A Sioux Falls SD SXFLSDPS8MD  490J DISH WIRELESS, LLC 640      
605-812 0 Sioux Falls SD   624H ONVOY SPECTRUM, LLC 640   2022-11-12   
605-812 1 Sioux Falls SD   624H ONVOY SPECTRUM, LLC 640   2022-11-12   
605-812 2 Sioux Falls SD   624H ONVOY SPECTRUM, LLC 640   2022-11-12   
605-812 3 Sioux Falls SD   162G ONVOY, LLC - SD 640   2022-11-12   
605-812 4 Sioux Falls SD   162G ONVOY, LLC - SD 640   2022-11-12   
605-812 5 Sioux Falls SD   162G ONVOY, LLC - SD 640   2022-11-12   
605-812 6 Sioux Falls SD   624H ONVOY SPECTRUM, LLC 640   2022-11-12   
605-812 7 Sioux Falls SD   624H ONVOY SPECTRUM, LLC 640   2022-11-12   
605-812 8 Sioux Falls SD   624H ONVOY SPECTRUM, LLC 640   2022-11-12   
605-812 9 Sioux Falls SD   490J DISH WIRELESS, LLC 640   2021-08-13   

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

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