Local Calling Guide

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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-200 A Woodlawn MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-200 0 Woodlawn MD   4773 XO MARYLAND, LLC 238      
443-200 1 Woodlawn MD   4773 XO MARYLAND, LLC 238      
443-200 2 Woodlawn MD   318J COMCAST IP PHONE LLC 238   2006-08-04   
443-200 3 Woodlawn MD   318J COMCAST IP PHONE LLC 238   2005-03-10   
443-200 4 Woodlawn MD   4773 XO MARYLAND, LLC 238      
443-200 5 Woodlawn MD   318J COMCAST IP PHONE LLC 238   2006-08-04   
443-200 6 Woodlawn MD   4773 XO MARYLAND, LLC 238      
443-200 7 Woodlawn MD   4773 XO MARYLAND, LLC 238      
443-200 8 Woodlawn MD   515J IP HORIZON LLC 238   2021-08-15   
443-200 9 Woodlawn MD   4773 XO MARYLAND, LLC 238      
443-201 A Westminster MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-201 0 Westminster MD   082H LOCAL ACCESS LLC - MD 238   2013-09-06   
443-201 1 Westminster MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-06-05   
443-201 2 Westminster MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2012-02-27   
443-201 3 Westminster MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-10-01   
443-201 4 Westminster MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2015-08-31   
443-201 5 Westminster MD   508J CENTURYLINK COMMUNICATIONS LLC 238   2014-04-02   
443-201 6 Westminster MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-09-01   
443-201 7 Westminster MD   876D ONVOY, LLC - MD 238   2012-10-08   
443-201 8 Westminster MD   318J COMCAST IP PHONE LLC 238   2013-11-13   
443-201 9 Westminster MD   318J COMCAST IP PHONE LLC 238   2015-09-04   
443-202 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-202 0 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-04-01   
443-202 1 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-04-01   
443-202 2 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-04-01   
443-202 3 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-04-01   
443-202 4 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-04-01   
443-202 5 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-04-01   
443-202 6 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-04-01   
443-202 7 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-04-01   
443-202 8 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-04-01   
443-202 9 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-04-01   
443-203 A West River MD MAYOMDMYRS1  9212 VERIZON MARYLAND, INC. 238      
443-203 0 West River MD   9212 VERIZON MARYLAND, INC. 238      
443-203 1 West River MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-04-03   
443-203 2 West River MD   4773 XO MARYLAND, LLC 238   2008-06-20   
443-203 3 West River MD   4773 XO MARYLAND, LLC 238   2007-04-20   
443-203 4 West River MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2003-08-20   
443-203 5 West River MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-31   
443-203 6 West River MD   318J COMCAST IP PHONE LLC 238   2005-03-10   
443-203 7 West River MD   508J CENTURYLINK COMMUNICATIONS LLC 238   2014-06-25   
443-203 8 West River MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-203 9 West River MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-204 A Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-204 0 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-07-06   
443-204 1 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-07-06   
443-204 2 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-07-06   
443-204 3 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-07-06   
443-204 4 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-02-01   

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Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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