Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 531 [Rate centres in NPA 531] [Dial plan for NPA 531]

NXX: 258

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-258 A South Gregory NE SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
531-258 2 South Gregory NE SXFLSDPSCMD  516J TON80 COMMUNICATIONS, LLC 640   2022-03-28   
531-258 9 South Gregory NE SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2021-04-24   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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