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
443-633 3 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-01   
443-633 4 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-01   
443-633 5 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-01   
443-633 6 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-01   
443-633 7 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-01   
443-633 8 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-01   
443-633 9 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-01   
443-634 A Waterloo (Washington DC LATA) MD ODTNMDAUDS0  9212 VERIZON MARYLAND, INC. 236      
443-634 0 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2012-01-08   
443-634 1 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2012-01-08   
443-634 2 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2012-01-08   
443-634 3 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2012-01-08   
443-634 4 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2012-01-08   
443-634 5 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2012-01-08   
443-634 6 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2012-01-08   
443-634 7 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2012-01-08   
443-634 8 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2012-01-08   
443-634 9 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2012-01-08   
443-635 A Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-635 0 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-12-13   
443-635 1 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-12-13   
443-635 2 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-12-13   
443-635 3 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-12-13   
443-635 4 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-12-13   
443-635 5 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-12-13   
443-635 6 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-12-13   
443-635 7 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-12-13   
443-635 8 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-12-13   
443-635 9 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-12-13   
443-636 A Catonsville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-636 0 Catonsville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-03-31   
443-636 1 Catonsville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-05-30   
443-636 2 Catonsville MD   4716 PAETEC COMMUNICATIONS, INC. - MD 238   2006-02-12   
443-636 3 Catonsville MD   2697 CTC COMMUNICATIONS CORP. - MD 238   2006-02-25   
443-636 4 Catonsville MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-636 5 Catonsville MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2007-08-13   
443-636 6 Catonsville MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2007-08-20   
443-636 7 Catonsville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-07-17   
443-636 8 Catonsville MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2008-07-27   
443-636 9 Catonsville MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2008-07-27   
443-637 A Armiger-Gibson Island MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-637 0 Armiger-Gibson Island MD   4773 XO MARYLAND, LLC 238      
443-637 1 Armiger-Gibson Island MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-01-10   
443-637 2 Armiger-Gibson Island MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-11-29   
443-637 3 Armiger-Gibson Island MD   4773 XO MARYLAND, LLC 238      
443-637 4 Armiger-Gibson Island MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2003-02-20   
443-637 5 Armiger-Gibson Island MD   4773 XO MARYLAND, LLC 238      
443-637 6 Armiger-Gibson Island MD   876D ONVOY, LLC - MD 238   2012-10-07   
443-637 7 Armiger-Gibson Island MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-10-11   
443-637 8 Armiger-Gibson Island MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-10-11   

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Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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