Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 931 [Rate centres in NPA 931] [Dial plan for NPA 931]

NXX: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
931-666 A Cumberland City TN NSVLTNMT83Z  525E ONVOY, LLC - TN 470      
931-666 0 Cumberland City TN NSVLTNMT83Z  525E ONVOY, LLC - TN 470   2018-04-06   
931-666 1 Cumberland City TN NSVNTNGN0MD  073H TELNYX LLC 470   2019-06-02   
931-666 4 Cumberland City TN   114J EXIANT COMMUNICATIONS LLC 470   2026-05-23   
931-666 6 Cumberland City TN NSVLTNMT83Z  525E ONVOY, LLC - TN 470   2017-12-01   
931-666 8 Cumberland City TN NSVLTNMTY9Z  624H ONVOY SPECTRUM, LLC 470   2023-06-11   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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