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: 888

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-888 A O'Neill NE OMAHNENWX6Y  073H TELNYX LLC 644      
531-888 0 O'Neill NE   073H TELNYX LLC 644   2017-04-23   
531-888 1 O'Neill NE   478H AIRUS, INC. - NE 644   2019-05-20   
531-888 2 O'Neill NE   6874 N.E. COLORADO CELLULAR, INC. 644   2017-04-24   
531-888 3 O'Neill NE   549E ONVOY, LLC - NE 644   2021-04-29   
531-888 4 O'Neill NE   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2024-09-09   
531-888 5 O'Neill NE   549E ONVOY, LLC - NE 644   2019-09-16   
531-888 6 O'Neill NE   549E ONVOY, LLC - NE 644   2021-03-13   
531-888 8 O'Neill NE   073H TELNYX LLC 644   2017-04-23   
531-888 9 O'Neill NE   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2020-05-29   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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