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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
443-367 0 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
443-367 1 Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-07-02   
443-367 2 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
443-367 3 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
443-367 4 Columbia MD   829J PAETEC ITEL, LLC 238   2007-06-15   
443-367 5 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
443-367 6 Columbia MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-28   
443-367 7 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
443-367 8 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-367 9 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2011-04-03   
443-368 A Westminster MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-369 A Bel Air MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-370 A Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-370 0 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-370 1 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-01-31   
443-370 2 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-01-31   
443-370 3 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-01-31   
443-370 4 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-02-18   
443-370 5 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-01-31   
443-370 6 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-01-31   
443-370 7 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-09-01   
443-370 8 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-09-20   
443-370 9 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-02-03   
443-371 A Bel Air MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-371 0 Bel Air MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-26   
443-371 1 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-02-06   
443-371 2 Bel Air MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-09-30   
443-371 3 Bel Air MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-11-28   
443-371 4 Bel Air MD   829J PAETEC ITEL, LLC 238   2006-04-08   
443-371 5 Bel Air MD   145J TERRA NOVA TELECOM INC. 238   2023-08-06   
443-371 6 Bel Air MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-09-20   
443-371 7 Bel Air MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-09-20   
443-371 8 Bel Air MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-04-08   
443-371 9 Bel Air MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-02-01   
443-372 A Edgewood MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-372 0 Edgewood MD   829J PAETEC ITEL, LLC 238      
443-372 1 Edgewood MD   829J PAETEC ITEL, LLC 238      
443-372 2 Edgewood MD   829J PAETEC ITEL, LLC 238      
443-372 3 Edgewood MD   829J PAETEC ITEL, LLC 238      
443-372 4 Edgewood MD   145J TERRA NOVA TELECOM INC. 238   2021-07-17   
443-372 5 Edgewood MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-06-03   
443-372 6 Edgewood MD   829J PAETEC ITEL, LLC 238   2003-12-01   
443-372 7 Edgewood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-09-09   
443-372 8 Edgewood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-09-09   
443-372 9 Edgewood MD   829J PAETEC ITEL, LLC 238      
443-373 A Ocean City MD SLBRMDSCXMD  5562 METROPCS, INC. 242      
443-373 0 Ocean City MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
443-373 1 Ocean City MD SLBRMDSCXMD  5562 METROPCS, INC. 242      
443-373 2 Ocean City MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2016-12-04   
443-373 3 Ocean City MD SLBRMDSCXMD  5562 METROPCS, INC. 242      
443-373 4 Ocean City MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2019-11-26   
443-373 5 Ocean City MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2024-07-15   
443-373 6 Ocean City MD   145J TERRA NOVA TELECOM INC. 242   2022-11-07   
443-373 7 Ocean City MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2004-11-01   
443-373 8 Ocean City MD SLBRMDSCXMD  5562 METROPCS, INC. 242   2004-10-13   
443-373 9 Ocean City MD SLBRMDSCXMD  5562 METROPCS, INC. 242      
443-374 A Aberdeen MD   829J PAETEC ITEL, LLC 236   2025-04-01   
443-374 0 Aberdeen MD   829J PAETEC ITEL, LLC 236      
443-374 1 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-06-24   
443-374 2 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-06-24   
443-374 3 Aberdeen MD   829J PAETEC ITEL, LLC 236      
443-374 4 Aberdeen MD   829J PAETEC ITEL, LLC 236      
443-374 5 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-06-24   
443-374 6 Aberdeen MD   829J PAETEC ITEL, LLC 236      
443-374 7 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-08-08   
443-374 8 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-08-08   
443-374 9 Aberdeen MD   829J PAETEC ITEL, LLC 236      
443-375 A Hampstead MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-375 0 Hampstead MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-375 1 Hampstead MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-375 2 Hampstead MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-375 3 Hampstead MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
443-375 4 Hampstead MD BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
443-375 5 Hampstead MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-04-19   
443-375 6 Hampstead MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-375 7 Hampstead MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-375 8 Hampstead MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-375 9 Hampstead MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-376 A Dundalk MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-376 0 Dundalk MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-376 1 Dundalk MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
443-376 2 Dundalk MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-28   
443-376 3 Dundalk MD   829J PAETEC ITEL, LLC 238   2007-06-14   
443-376 4 Dundalk MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2019-05-10   
443-376 5 Dundalk MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-08-13   
443-376 6 Dundalk MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-16   
443-376 7 Dundalk MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-11-28   
443-376 8 Dundalk MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-07-02   
443-376 9 Dundalk MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
443-377 A Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-377 0 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-08-06   
443-377 1 Towson MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
443-377 2 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 3 Towson MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-01-02   
443-377 4 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 5 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 6 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 7 Towson MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-03-25   
443-377 8 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-05-02   
443-377 9 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-05-02   

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

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