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: 774

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-774 A Sioux Falls SD SXFLSDCHXMD  179J EDGETEL, LLC 640      
605-774 0 Sioux Falls SD SXFLSDCHXMD  179J EDGETEL, LLC 640   2020-02-16   
605-774 1 Sioux Falls SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2021-11-08   
605-774 2 Sioux Falls SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2021-11-08   
605-774 3 Sioux Falls SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2021-11-08   
605-774 4 Sioux Falls SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2020-08-28   
605-774 5 Sioux Falls SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2021-11-08   
605-774 6 Sioux Falls SD SXFLSDPSCMD  516J TON80 COMMUNICATIONS, LLC 640   2021-09-09   
605-774 7 Sioux Falls SD   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2025-03-14   
605-774 8 Sioux Falls SD   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2025-03-14   
605-774 9 Sioux Falls SD   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2025-09-17   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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