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: 521

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-521 A Davey NE LNCLNEXLXFX  549E ONVOY, LLC - NE 958      
531-521 0 Davey NE LNCLNEXLX2Y  624H ONVOY SPECTRUM, LLC 958   2024-03-08   
531-521 3 Davey NE LNCLNEXLXFX  549E ONVOY, LLC - NE 958   2021-03-19   
531-521 4 Davey NE LNCLNEXLXFX  549E ONVOY, LLC - NE 958   2021-03-19   
531-521 5 Davey NE LNCLNEXLXFX  549E ONVOY, LLC - NE 958   2019-05-04   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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