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: 207

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-207 A Midway (Washington) TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-207 0 Midway (Washington) TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956   2008-04-05   
423-207 1 Midway (Washington) TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956   2005-09-16   
423-207 2 Midway (Washington) TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2010-06-19   
423-207 3 Midway (Washington) TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2010-10-08   
423-207 4 Midway (Washington) TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-207 5 Midway (Washington) TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2011-07-04   
423-207 6 Midway (Washington) TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956   2012-06-30   
423-207 7 Midway (Washington) TN JHCYTNXCXRX  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 956   2013-06-21   
423-207 8 Midway (Washington) TN JHCYTNXCYZZ  829J PAETEC ITEL, LLC 956   2014-05-28   
423-207 9 Midway (Washington) TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956   2014-01-20   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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