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: 840

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-840 A Butler TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-840 0 Butler TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2018-08-20   
423-840 1 Butler TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2018-11-02   
423-840 2 Butler TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2018-12-09   
423-840 3 Butler TN JHCYTNXCXAY  073H TELNYX LLC 956   2021-01-17   
423-840 5 Butler TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-05-22   
423-840 6 Butler TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-05-22   
423-840 7 Butler TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2019-06-06   
423-840 8 Butler TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2018-06-16   
423-840 9 Butler TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2019-06-06   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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