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: 317

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-317 A Hallam NE LNCLNEXLXFX  549E ONVOY, LLC - NE 958      
531-317 0 Hallam NE LNCLNEXLXFX  549E ONVOY, LLC - NE 958   2023-09-16   
531-317 1 Hallam NE LNCLNEXLX2Y  624H ONVOY SPECTRUM, LLC 958   2024-03-09   
531-317 3 Hallam NE LNCLNEXLXFX  549E ONVOY, LLC - NE 958   2023-06-15   
531-317 5 Hallam NE   710A ALLO COMMUNICATIONS, LLC - NE 958   2024-03-22   

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

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