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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
443-238 9 Parkton MD   145J TERRA NOVA TELECOM INC. 238   2024-09-12   
443-239 A Easton MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
443-239 0 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-01-19   
443-239 1 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-01-19   
443-239 2 Easton MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2004-03-12   
443-239 3 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2011-02-03   
443-239 4 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2012-06-03   
443-239 5 Easton MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2011-04-02   
443-239 6 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2012-06-03   
443-239 7 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2015-10-01   
443-239 8 Easton MD   073H TELNYX LLC 242   2017-09-13   
443-239 9 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-12-03   
443-240 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-240 0 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 1 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 2 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 3 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 4 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 5 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 6 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 7 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 8 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 9 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-241 A Westminster MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-242 A Sparrows Point MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-242 0 Sparrows Point MD   829J PAETEC ITEL, LLC 238      
443-242 1 Sparrows Point MD   5562 METROPCS, INC. 238   2021-02-07   
443-242 2 Sparrows Point MD   829J PAETEC ITEL, LLC 238   2007-06-15   
443-242 3 Sparrows Point MD   829J PAETEC ITEL, LLC 238      
443-242 4 Sparrows Point MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
443-242 5 Sparrows Point MD   5562 METROPCS, INC. 238   2020-09-27   
443-242 6 Sparrows Point MD   318J COMCAST IP PHONE, LLC 238   2007-10-11   
443-242 7 Sparrows Point MD   318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-242 8 Sparrows Point MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2025-08-21   
443-242 9 Sparrows Point MD   876D ONVOY, LLC - MD 238   2023-10-22   
443-243 A Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-244 A Westminster MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-244 0 Westminster MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-02-26   
443-244 1 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-08-02   
443-244 2 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-02-28   
443-244 3 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-09-20   
443-244 4 Westminster MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-244 5 Westminster MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-11-06   
443-244 6 Westminster MD   876D ONVOY, LLC - MD 238   2016-03-10   
443-244 7 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-12-02   
443-244 8 Westminster MD   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2003-11-08   
443-244 9 Westminster MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-02-14   
443-245 A Elkton MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-245 0 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 1 Elkton MD   829J PAETEC ITEL, LLC 238      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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