Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 374

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-374 A La Follette TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-374 0 La Follette TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-374 1 La Follette TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-374 2 La Follette TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2019-08-09   
423-374 3 La Follette TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-02-25   
423-374 4 La Follette TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-02-25   
423-374 5 La Follette TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-02-25   
423-374 6 La Follette TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2021-01-10   
423-374 7 La Follette TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2021-01-10   
423-374 8 La Follette TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-02-25   
423-374 9 La Follette TN KNVLTNMAYIX  506J TWILIO INTERNATIONAL, INC. 474   2021-11-03   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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