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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
443-964 0 North Beach MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-964 1 North Beach MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-17   
443-964 2 North Beach MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2006-07-31   
443-964 3 North Beach MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2010-02-01   
443-964 4 North Beach MD   318J COMCAST IP PHONE, LLC 238   2008-03-07   
443-964 5 North Beach MD   318J COMCAST IP PHONE, LLC 238   2011-06-28   
443-964 6 North Beach MD   318J COMCAST IP PHONE, LLC 238   2012-07-08   
443-964 7 North Beach MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-964 8 North Beach MD   318J COMCAST IP PHONE, LLC 238   2007-01-22   
443-964 9 North Beach MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-01-02   
443-965 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2024-02-09   
443-965 0 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 1 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 2 Baltimore MD   9212 VERIZON MARYLAND, INC. 238   2006-08-31   
443-965 3 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 4 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 5 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 6 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 7 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
443-965 8 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-08-23   
443-965 9 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2010-08-09   
443-966 A Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-966 0 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-11-06   
443-966 1 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-02-16   
443-966 2 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-08-01   
443-966 3 Fallston MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-01-09   
443-966 4 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-966 5 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-07-02   
443-966 6 Fallston MD   876D ONVOY, LLC - MD 238   2021-03-04   
443-966 7 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-01-12   
443-966 8 Fallston MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-966 9 Fallston MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-967 A North East MD NRTEMDNERS0  9212 VERIZON MARYLAND, INC. 238      
443-967 0 North East MD   9212 VERIZON MARYLAND, INC. 238      
443-967 1 North East MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-967 2 North East MD   228C IDT AMERICA, CORP. - MD 238   2012-01-08   
443-967 3 North East MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2013-05-23   
443-967 4 North East MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-08-22   
443-967 5 North East MD   876D ONVOY, LLC - MD 238   2016-03-21   
443-967 6 North East MD   876D ONVOY, LLC - MD 238   2016-03-21   
443-967 7 North East MD   073H TELNYX LLC 238   2017-04-26   
443-967 8 North East MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-967 9 North East MD   5562 METROPCS, INC. 238   2018-12-31   
443-968 A Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-968 0 Prince Frederick MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-968 1 Prince Frederick MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2003-01-24   
443-968 2 Prince Frederick MD   318J COMCAST IP PHONE, LLC 238   2008-04-08   
443-968 3 Prince Frederick MD   829J PAETEC ITEL, LLC 238   2006-07-30   
443-968 4 Prince Frederick MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2008-06-23   
443-968 5 Prince Frederick MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-10-07   

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

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