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: 340

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-340 A Clarkson NE OMAKNEYW1MD  939H COMMIO, LLC 644      
531-340 0 Clarkson NE OMAKNEYW1MD  939H COMMIO, LLC 644   2023-10-09   
531-340 1 Clarkson NE OMAKNEYW1MD  939H COMMIO, LLC 644   2023-10-09   
531-340 2 Clarkson NE OMAKNEYW1MD  939H COMMIO, LLC 644   2023-10-09   
531-340 3 Clarkson NE OMAKNEYW1MD  939H COMMIO, LLC 644   2023-10-09   
531-340 4 Clarkson NE OMAKNEYW1MD  939H COMMIO, LLC 644   2023-10-09   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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