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: 414

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-414 A Madison NE OMAHNENWXPX  549E ONVOY, LLC - NE 644   2025-02-10   
531-414 0 Madison NE   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2018-07-13   
531-414 1 Madison NE   073H TELNYX LLC 644   2021-02-18   
531-414 3 Madison NE   549E ONVOY, LLC - NE 644   2019-08-31   
531-414 4 Madison NE   549E ONVOY, LLC - NE 644   2018-11-17   
531-414 5 Madison NE   549E ONVOY, LLC - NE 644   2020-10-12   
531-414 6 Madison NE   549E ONVOY, LLC - NE 644   2021-03-13   
531-414 8 Madison NE   549E ONVOY, LLC - NE 644   2021-03-27   
531-414 9 Madison NE   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2019-09-05   

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

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