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: 220

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-220 A Erwin TN JHCYTNXCXQY  8356 US LEC OF TENNESSEE, INC. 956      
423-220 0 Erwin TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2006-12-04   
423-220 1 Erwin TN JHCYTNXCXQY  8356 US LEC OF TENNESSEE, INC. 956      
423-220 2 Erwin TN   624H ONVOY SPECTRUM, LLC 956   2024-03-05   
423-220 3 Erwin TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2021-02-08   
423-220 4 Erwin TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2018-06-09   
423-220 6 Erwin TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2003-05-13   
423-220 7 Erwin TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2004-05-16   
423-220 8 Erwin TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2022-09-29   
423-220 9 Erwin TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2005-07-15   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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