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: 705

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-705 A Johnson City TN JHCYTNXCXRY  478J NUSO, LLC 956      
423-705 0 Johnson City TN JHCYTNXCX8Y  939H COMMIO, LLC 956   2022-10-23   
423-705 1 Johnson City TN JHCYTNXCX8Y  939H COMMIO, LLC 956   2022-10-23   
423-705 2 Johnson City TN JHCYTNXCXRY  478J NUSO, LLC 956   2022-02-03   
423-705 3 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-03-17   
423-705 4 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-03-17   
423-705 5 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-705 6 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-08-15   
423-705 7 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-08-15   
423-705 8 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-08-15   
423-705 9 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-08-15   

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

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