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: 315

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-315 A Blair NE BLLVNEBL5MD  3233 LEVEL 3 COMMUNICATIONS, LLC - NE 644      
531-315 0 Blair NE OMAKNEYW1MD  939H COMMIO, LLC 644   2024-02-12   
531-315 2 Blair NE BLLVNEBL5MD  3233 LEVEL 3 COMMUNICATIONS, LLC - NE 644   2023-03-24   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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