Local Calling Guide

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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 422

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-422 A Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-422 0 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-26   
443-422 1 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-05-10   
443-422 2 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-04-29   
443-422 3 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-422 4 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-05   
443-422 5 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-05   
443-422 6 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-11-25   
443-422 7 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-04-03   
443-422 8 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-12-03   
443-422 9 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-08-18   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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