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: 643

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-643 A Selby SD SXFLSDPSDS0  7076 MIDCONTINENT COMMUNICATIONS. - SD 640      
605-643 5 Selby SD SXFLSDPSDS0  7076 MIDCONTINENT COMMUNICATIONS. - SD 640   2016-03-25   

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

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