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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
443-441 2 Glenwood MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-441 3 Glenwood MD BLTMMDCHX7X  073H TELNYX LLC 238      
443-441 4 Glenwood MD   145J TERRA NOVA TELECOM INC. 238      
443-441 5 Glenwood MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
443-441 6 Glenwood MD   876D ONVOY, LLC - MD 238      
443-441 7 Glenwood MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238      
443-441 8 Glenwood MD   515J IP HORIZON LLC 238      
443-441 9 Glenwood MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-442 A Parkville MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-442 0 Parkville MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-442 1 Parkville MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-442 2 Parkville MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-442 3 Parkville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-442 4 Parkville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-442 5 Parkville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-442 6 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-442 7 Parkville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-442 8 Parkville MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-442 9 Parkville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-443 A Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238   2024-01-22   
443-443 0 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238      
443-443 1 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238      
443-443 2 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238      
443-443 3 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238      
443-443 4 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238      
443-443 5 Arbutus MD   876D ONVOY, LLC - MD 238      
443-443 6 Arbutus MD   876D ONVOY, LLC - MD 238      
443-443 7 Arbutus MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-443 8 Arbutus MD   876D ONVOY, LLC - MD 238      
443-443 9 Arbutus MD   876D ONVOY, LLC - MD 238      
443-444 A Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-444 0 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-444 1 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-444 2 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-444 3 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-444 4 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-444 5 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-444 6 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-444 7 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-444 8 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-444 9 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-445 A Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
443-445 0 Elkridge MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-445 1 Elkridge MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-445 2 Elkridge MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-445 3 Elkridge MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-445 6 Elkridge MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-445 7 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
443-445 8 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
443-445 9 Elkridge MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-446 A Queenstown MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242      
443-446 1 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
443-446 2 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
443-446 3 Queenstown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
443-446 4 Queenstown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
443-446 5 Queenstown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
443-446 6 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
443-446 7 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
443-446 8 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
443-446 9 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
443-447 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-447 0 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-447 1 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-447 2 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-447 3 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-447 4 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-447 5 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-447 6 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-447 7 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-447 8 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-447 9 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-448 A Denton MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242      
443-448 1 Denton MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
443-448 2 Denton MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242      
443-448 3 Denton MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242      
443-448 4 Denton MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242      
443-448 5 Denton MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
443-448 6 Denton MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242      
443-448 7 Denton MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242      
443-448 8 Denton MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
443-448 9 Denton MD SLBRMD902MD  073H TELNYX LLC 242      
443-449 A Baltimore MD PIVLMDPKFMD  9170 BROADVIEW NETWORKS, INC. - MD 238      
443-449 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-449 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-449 2 Baltimore MD PIVLMDPKFMD  9170 BROADVIEW NETWORKS, INC. - MD 238      
443-449 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-449 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-449 5 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-449 6 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-449 7 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-449 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-449 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-450 A Pikesville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-450 0 Pikesville MD BLTQMD012MD  964H BARR TELL USA, INC. 238      
443-450 1 Pikesville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-450 2 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-450 3 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-450 4 Pikesville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-450 5 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-450 6 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      

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Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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