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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
443-347 0 Cardiff MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-31   
443-347 1 Cardiff MD   829J PAETEC ITEL, LLC 238      
443-347 2 Cardiff MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-07   
443-347 3 Cardiff MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-07-04   
443-347 4 Cardiff MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2017-11-09   
443-347 5 Cardiff MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-14   
443-347 6 Cardiff MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-14   
443-347 7 Cardiff MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-12   
443-347 8 Cardiff MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-347 9 Cardiff MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-07   
443-348 A Woodlawn MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-348 0 Woodlawn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-03-08   
443-348 1 Woodlawn MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-348 2 Woodlawn MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-348 3 Woodlawn MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2017-12-02   
443-348 4 Woodlawn MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-348 5 Woodlawn MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2014-10-06   
443-348 6 Woodlawn MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
443-348 7 Woodlawn MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2011-11-11   
443-348 8 Woodlawn MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-05-16   
443-348 9 Woodlawn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-04-14   
443-349 A Silver Run MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-350 A Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-350 0 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-350 1 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-350 2 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-350 3 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-350 4 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-350 5 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-350 6 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-350 7 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-350 8 Elkton MD BLTMMDCH40Z  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238   2005-05-08   
443-350 9 Elkton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-07-25   
443-351 A Odenton MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-351 0 Odenton MD   829J PAETEC ITEL, LLC 238      
443-351 1 Odenton MD   829J PAETEC ITEL, LLC 238      
443-351 2 Odenton MD   829J PAETEC ITEL, LLC 238      
443-351 3 Odenton MD   829J PAETEC ITEL, LLC 238      
443-351 4 Odenton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-03   
443-351 5 Odenton MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2017-01-19   
443-351 6 Odenton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-03-01   
443-351 7 Odenton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
443-351 8 Odenton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-27   
443-351 9 Odenton MD   829J PAETEC ITEL, LLC 238      
443-352 A Pikesville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-352 0 Pikesville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2007-09-11   
443-352 1 Pikesville MD BLTMMDCHDMD  551G NUSO, LLC 238   2016-08-31   
443-352 2 Pikesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
443-352 3 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-08-13   
443-352 4 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238   2003-10-30   
443-352 5 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238   2003-10-30   
443-352 6 Pikesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
443-352 7 Pikesville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-352 8 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-08-13   
443-352 9 Pikesville MD BLTMMDCHDMD  551G NUSO, LLC 238   2016-08-31   
443-353 A Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
443-353 0 Cockeysville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-10-26   
443-353 1 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238   2004-05-05   
443-353 2 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238   2004-05-05   
443-353 3 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238   2004-05-05   
443-353 4 Cockeysville MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238   2012-04-26   
443-353 5 Cockeysville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2015-04-10   
443-353 6 Cockeysville MD   829J PAETEC ITEL, LLC 238   2008-06-09   
443-353 7 Cockeysville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-06-04   
443-353 8 Cockeysville MD   515J IP HORIZON LLC 238   2016-01-04   
443-353 9 Cockeysville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-354 A Glen Burnie MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-354 0 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-354 1 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2013-06-16   
443-354 2 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-354 3 Glen Burnie MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-05-30   
443-354 4 Glen Burnie MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-354 5 Glen Burnie MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2009-11-05   
443-354 6 Glen Burnie MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-06-14   
443-354 7 Glen Burnie MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-06-14   
443-354 8 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-06-06   
443-354 9 Glen Burnie MD   515J IP HORIZON LLC 238   2013-09-06   
443-355 A Ellicott City MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-355 0 Ellicott City MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-03-14   
443-355 1 Ellicott City MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2017-01-19   
443-355 2 Ellicott City MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-355 3 Ellicott City MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2017-01-19   
443-355 4 Ellicott City MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-355 5 Ellicott City MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2017-03-25   
443-355 6 Ellicott City MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-05-29   
443-355 7 Ellicott City MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-05-29   
443-355 8 Ellicott City MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2017-10-14   
443-355 9 Ellicott City MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-10-20   
443-356 A Bel Air MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-356 0 Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-02   
443-356 1 Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-356 2 Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-356 3 Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-07-07   
443-356 4 Bel Air MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-356 5 Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-356 6 Bel Air MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-356 7 Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-10-25   
443-356 8 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
443-356 9 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
443-357 A Pikesville MD PIVLMDPKDS1  9212 VERIZON MARYLAND, INC. 238      

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

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