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: 766

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-766 A Limestone TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-766 0 Limestone TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2025-04-03   
423-766 1 Limestone TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2022-02-08   
423-766 2 Limestone TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2023-02-24   
423-766 3 Limestone TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-07-10   
423-766 4 Limestone TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-07-10   
423-766 5 Limestone TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2023-09-09   
423-766 6 Limestone TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-03-24   
423-766 7 Limestone TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-03-24   
423-766 8 Limestone TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2023-04-27   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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