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: 308

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-308 A Malcolm NE LNCLNEXLXDY  793K TWC IP ENABLED SERVICES, LLC 958   2024-07-26   
531-308 1 Malcolm NE LNCLNEXLXDY  793K TWC IP ENABLED SERVICES, LLC 958   2024-07-26   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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