Local Calling Guide

Area code/prefix search

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NPA: 731 [Rate centres in NPA 731] [Dial plan for NPA 731]

NXX: 747

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
731-747 A Humboldt TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468      
731-747 0 Humboldt TN   515J IP HORIZON LLC 468   2022-01-28   
731-747 1 Humboldt TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 468   2025-03-24   
731-747 2 Humboldt TN   525E ONVOY, LLC - TN 468   2016-05-25   
731-747 3 Humboldt TN   525E ONVOY, LLC - TN 468   2016-05-25   
731-747 4 Humboldt TN   525E ONVOY, LLC - TN 468   2016-05-25   
731-747 5 Humboldt TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 468   2016-12-01   
731-747 6 Humboldt TN   073H TELNYX LLC 468   2017-03-29   
731-747 7 Humboldt TN   525E ONVOY, LLC - TN 468   2016-04-27   
731-747 8 Humboldt TN   525E ONVOY, LLC - TN 468   2016-04-27   
731-747 9 Humboldt TN   276F PEERLESS NETWORK OF TENNESSEE, LLC - TN 468   2024-11-03   

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

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