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: 501

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-501 A Mountain City TN JHCYTNXCX9Y  081J SKYBEST COMMUNICATIONS, INC. - TN 956      
423-501 0 Mountain City TN JHCYTNXCXAY  073H TELNYX LLC 956   2021-01-23   
423-501 1 Mountain City TN JHCYTNXCX9Y  081J SKYBEST COMMUNICATIONS, INC. - TN 956   2017-12-24   
423-501 2 Mountain City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2018-06-09   
423-501 3 Mountain City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-07-10   
423-501 4 Mountain City TN JHCYTNXCXFY  197D VONAGE AMERICA LLC 956   2021-06-27   
423-501 5 Mountain City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-02-17   
423-501 6 Mountain City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-02-17   
423-501 7 Mountain City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-07-10   
423-501 8 Mountain City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2022-09-29   
423-501 9 Mountain City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-10-23   

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

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