Local Calling Guide

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NPA: 531 [Rate centres in NPA 531] [Dial plan for NPA 531]

NXX: 288

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-288 A Madison NE OMAHNENWGT6  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644      
531-288 0 Madison NE   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2025-06-27   
531-288 2 Madison NE   145J TERRA NOVA TELECOM INC. 644   2025-07-18   
531-288 6 Madison NE OMAHNENWXEX  7144 TELEPORT COMMUNICATIONS AMERICA, LLC - NE 644   2023-02-20   
531-288 7 Madison NE OMAHNENWGT6  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2024-11-10   
531-288 8 Madison NE OMAHNENWGT6  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2024-04-20   
531-288 9 Madison NE OMAHNENWGT6  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2022-09-18   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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