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: 401

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-401 A Sioux Falls SD SXFLSDCOXVX  515J IP HORIZON LLC 640      
605-401 0 Sioux Falls SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2021-07-08   
605-401 1 Sioux Falls SD   515J IP HORIZON LLC 640   2021-04-23   
605-401 2 Sioux Falls SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2021-07-08   
605-401 3 Sioux Falls SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2021-07-08   
605-401 4 Sioux Falls SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2021-07-08   
605-401 5 Sioux Falls SD SXFLSDCOX1X  073H TELNYX LLC 640   2021-12-21   
605-401 6 Sioux Falls SD SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2022-01-22   
605-401 7 Sioux Falls SD SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2021-08-21   
605-401 8 Sioux Falls SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2022-12-05   
605-401 9 Sioux Falls SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2023-07-07   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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