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: 371

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-371 A Sioux Falls SD SXFLSDSERS1  9631 QWEST CORPORATION 640      
605-371 0 Sioux Falls SD SXFLSDSERS1  9631 QWEST CORPORATION 640      
605-371 1 Sioux Falls SD SXFLSDSERS1  9631 QWEST CORPORATION 640      
605-371 2 Sioux Falls SD SXFLSDSERS1  9631 QWEST CORPORATION 640      
605-371 3 Sioux Falls SD SXFLSDSERS1  9631 QWEST CORPORATION 640      
605-371 4 Sioux Falls SD SXFLSDSERS1  9631 QWEST CORPORATION 640      
605-371 5 Sioux Falls SD SXFLSDSERS1  9631 QWEST CORPORATION 640      
605-371 6 Sioux Falls SD SXFLSDCHMMD  6701 AERIAL COMMUNICATIONS, INC. 640   2007-01-08   
605-371 7 Sioux Falls SD SXFLSDSWDS0  9631 QWEST CORPORATION 640      
605-371 8 Sioux Falls SD SXFLSDSERS1  9631 QWEST CORPORATION 640      
605-371 9 Sioux Falls SD SXFLSDSERS1  9631 QWEST CORPORATION 640      

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

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