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: 491

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-491 A Johnson City TN JHCYTNXCX1Y  508J CENTURYLINK COMMUNICATIONS, LLC 956      
423-491 0 Johnson City TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2014-09-06   
423-491 1 Johnson City TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2015-02-09   
423-491 2 Johnson City TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2015-02-09   
423-491 3 Johnson City TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2016-04-03   
423-491 4 Johnson City TN JHCYTNXCX3X  7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 956   2015-02-20   
423-491 5 Johnson City TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2015-06-14   
423-491 6 Johnson City TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2015-06-10   
423-491 7 Johnson City TN JHCYTNXCX1Y  508J CENTURYLINK COMMUNICATIONS, LLC 956   2013-11-01   
423-491 8 Johnson City TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956   2015-07-30   
423-491 9 Johnson City TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2015-12-22   

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

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