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: 607

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-607 A Sioux Falls SD SXFLSDPS7MD  321J HD CARRIER LLC 640      
605-607 0 Sioux Falls SD   939H COMMIO, LLC 640   2024-03-03   
605-607 1 Sioux Falls SD   939H COMMIO, LLC 640   2024-03-03   
605-607 2 Sioux Falls SD   939H COMMIO, LLC 640   2024-03-03   
605-607 3 Sioux Falls SD   939H COMMIO, LLC 640   2024-03-03   
605-607 4 Sioux Falls SD   162G ONVOY, LLC - SD 640   2020-12-03   
605-607 5 Sioux Falls SD   162G ONVOY, LLC - SD 640   2020-12-03   
605-607 6 Sioux Falls SD   162G ONVOY, LLC - SD 640   2020-12-03   
605-607 7 Sioux Falls SD   162G ONVOY, LLC - SD 640   2020-12-03   
605-607 8 Sioux Falls SD   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2024-10-21   
605-607 9 Sioux Falls SD   321J HD CARRIER LLC 640   2020-01-08   

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

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