Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 731 [Rate centres in NPA 731] [Dial plan for NPA 731]

NXX: 531

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
731-531 A Cedar Grove TN   624H ONVOY SPECTRUM, LLC 468   2025-08-24   
731-531 0 Cedar Grove TN   624H ONVOY SPECTRUM, LLC 468   2025-08-24   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

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