Local Calling Guide

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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
443-965 6 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2006-08-23   
443-965 7 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2006-08-23   
443-965 8 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2006-08-23   
443-965 9 Baltimore MD BLTMMDSN6MD  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 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-11-06   
443-966 1 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-02-16   
443-966 2 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-08-01   
443-966 3 Fallston MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-01-09   
443-966 4 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-966 5 Fallston MD BLTOMDKHBMD  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 BLTMMDCHXMX  506J TWILIO INTERNATIONAL INC 238   2020-12-26   
443-966 8 Fallston MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-966 9 Fallston MD BLTQMD01DS0  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 NRTEMDNERS0  9212 VERIZON MARYLAND, INC. 238      
443-967 1 North East MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-967 2 North East MD BLTMMDCH3MD  228C IDT AMERICA CORP - MD 238   2012-01-08   
443-967 3 North East MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2013-05-23   
443-967 4 North East MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-08-22   
443-967 5 North East MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-21   
443-967 6 North East MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-21   
443-967 7 North East MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-967 8 North East MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-967 9 North East MD BLTMMDCHFMD  5562 METRO PCS, 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 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-968 1 Prince Frederick MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2003-01-24   
443-968 2 Prince Frederick MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2008-04-08   
443-968 3 Prince Frederick MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238   2006-07-30   
443-968 4 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2008-06-23   
443-968 5 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-10-07   
443-968 6 Prince Frederick MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2003-01-24   
443-968 7 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
443-968 8 Prince Frederick MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2016-05-24   
443-968 9 Prince Frederick MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2011-12-16   
443-969 A Essex MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-969 0 Essex MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-969 1 Essex MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-12-01   
443-969 2 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2006-12-29   
443-969 3 Essex MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-969 4 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2006-12-29   
443-969 5 Essex MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-02-05   
443-969 6 Essex MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-969 7 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-10-16   
443-969 8 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-10-16   
443-969 9 Essex MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-970 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-970 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-19   

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Last updated: Sun, 28 Feb 2021 19:06:05 UTC

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