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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
443-231 6 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-06-20   
443-231 7 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-06-20   
443-231 8 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-08-25   
443-231 9 Essex MD   515J IP HORIZON LLC 238   2016-05-31   
443-232 A Willards MD SLBRMD90DS0  2593 CORE COMMUNICATIONS, INC.- MD 242      
443-232 0 Willards MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-04-30   
443-232 1 Willards MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-07-04   
443-232 2 Willards MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-07-04   
443-232 3 Willards MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-06-17   
443-232 4 Willards MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-06-17   
443-232 5 Willards MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-06-17   
443-232 6 Willards MD SLBRMD90DS0  2593 CORE COMMUNICATIONS, INC.- MD 242   2019-06-07   
443-232 7 Willards MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2007-08-08   
443-232 8 Willards MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
443-232 9 Willards MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-04-30   
443-233 A Vienna MD   829J PAETEC ITEL, LLC 242   2025-04-01   
443-233 0 Vienna MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-08-09   
443-233 1 Vienna MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-08-09   
443-233 2 Vienna MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2007-08-08   
443-233 3 Vienna MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-06-17   
443-233 4 Vienna MD   145J TERRA NOVA TELECOM INC. 242   2022-04-23   
443-233 5 Vienna MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-10-17   
443-233 6 Vienna MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2012-05-26   
443-233 7 Vienna MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-06-17   
443-233 8 Vienna MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
443-233 9 Vienna MD   829J PAETEC ITEL, LLC 242      
443-234 A Snow Hill MD   829J PAETEC ITEL, LLC 242   2025-04-01   
443-234 0 Snow Hill MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-04   
443-234 1 Snow Hill MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-03-05   
443-234 2 Snow Hill MD   829J PAETEC ITEL, LLC 242      
443-234 3 Snow Hill MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2016-05-06   
443-234 4 Snow Hill MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-02-15   
443-234 5 Snow Hill MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2006-07-31   
443-234 6 Snow Hill MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-06-17   
443-234 7 Snow Hill MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-06-17   
443-234 8 Snow Hill MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
443-234 9 Snow Hill MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-04   
443-235 A Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-236 A Cardiff MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-237 A North Beach MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-238 A Parkton MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-238 0 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-03-07   
443-238 1 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-21   
443-238 2 Parkton MD   829J PAETEC ITEL, LLC 238      
443-238 3 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-21   
443-238 4 Parkton MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-238 5 Parkton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2015-09-21   
443-238 6 Parkton MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-238 7 Parkton MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-12   
443-238 8 Parkton MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-238 9 Parkton MD BLTQMD018MD  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 ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-01-19   
443-239 1 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-01-19   
443-239 2 Easton MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2004-03-12   
443-239 3 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2011-02-03   
443-239 4 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2012-06-03   
443-239 5 Easton MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2011-04-02   
443-239 6 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2012-06-03   
443-239 7 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2015-10-01   
443-239 8 Easton MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
443-239 9 Easton MD ESTNMDESQMD  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 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 1 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 2 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 3 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 4 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 5 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 6 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 7 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 8 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 9 Baltimore MD CLMAMDORGT0  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 BLTMMDCH40Z  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 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
443-242 5 Sparrows Point MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2020-09-27   
443-242 6 Sparrows Point MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-10-11   
443-242 7 Sparrows Point MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-242 9 Sparrows Point MD BLTMMDCH42Z  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 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-02-26   
443-244 1 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-08-02   
443-244 2 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-02-28   
443-244 3 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-09-20   
443-244 4 Westminster MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-244 5 Westminster MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-11-06   
443-244 6 Westminster MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-10   
443-244 7 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-12-02   
443-244 8 Westminster MD BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2003-11-08   
443-244 9 Westminster MD BLTMMDSN6MD  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      
443-245 2 Elkton MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-12-15   

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

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