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: 673

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-673 A Johnson City TN JHCYTNXCYZZ  829J PAETEC ITEL, LLC 956   2024-12-07   
423-673 0 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-12-18   
423-673 1 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-12-18   
423-673 2 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-12-18   
423-673 3 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-12-18   
423-673 4 Johnson City TN JHCYTNXCYZZ  829J PAETEC ITEL, LLC 956   2021-05-28   
423-673 5 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-12-18   
423-673 6 Johnson City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-10-23   
423-673 7 Johnson City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-10-23   
423-673 8 Johnson City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-10-23   
423-673 9 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-09-05   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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