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: 510

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
731-510 A Adamsville TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468      
731-510 0 Adamsville TN   624H ONVOY SPECTRUM, LLC 468   2023-06-08   
731-510 3 Adamsville TN   525E ONVOY, LLC - TN 468   2021-10-31   
731-510 4 Adamsville TN   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 468   2023-02-25   
731-510 6 Adamsville TN   114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 468   2023-09-04   
731-510 9 Adamsville TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 468   2021-09-26   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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