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
443-551 5 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-551 6 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-551 7 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-551 8 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-551 9 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-552 A Baltimore MD BLTMMDMDDS0  9212 VERIZON MARYLAND, INC. 238      
443-552 0 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 1 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2016-01-05   
443-552 2 Baltimore MD   9212 VERIZON MARYLAND, INC. 238      
443-552 3 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 4 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 5 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 6 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2005-04-20   
443-552 7 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 8 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2005-04-20   
443-552 9 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2005-09-22   
443-553 A Elkton MD NRTEMDAICM1  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-554 A Chase MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-554 0 Chase MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-554 1 Chase MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-12-13   
443-554 2 Chase MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-12-13   
443-554 3 Chase MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
443-554 4 Chase MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-12-24   
443-554 5 Chase MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-12-24   
443-554 6 Chase MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-554 7 Chase MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-07-14   
443-554 8 Chase MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-11-17   
443-554 9 Chase MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-556 A Cockeysville MD   9212 VERIZON MARYLAND, INC. 238      
443-557 A Glen Burnie MD   4773 XO MARYLAND, LLC 238      
443-557 0 Glen Burnie MD   4773 XO MARYLAND, LLC 238      
443-557 1 Glen Burnie MD   4773 XO MARYLAND, LLC 238      
443-557 2 Glen Burnie MD   4773 XO MARYLAND, LLC 238      
443-557 3 Glen Burnie MD   876D ONVOY, LLC - MD 238   2016-02-29   
443-557 4 Glen Burnie MD   4773 XO MARYLAND, LLC 238      
443-557 5 Glen Burnie MD   4773 XO MARYLAND, LLC 238      
443-557 6 Glen Burnie MD   4773 XO MARYLAND, LLC 238      
443-557 7 Glen Burnie MD   4773 XO MARYLAND, LLC 238      
443-557 8 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-16   
443-557 9 Glen Burnie MD   4773 XO MARYLAND, LLC 238      
443-558 A Aberdeen MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 236      
443-558 0 Aberdeen MD   4773 XO MARYLAND, LLC 236      
443-558 1 Aberdeen MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-04   
443-558 2 Aberdeen MD   4773 XO MARYLAND, LLC 236   2013-08-07   
443-558 3 Aberdeen MD   4773 XO MARYLAND, LLC 236      
443-558 4 Aberdeen MD   2697 CTC COMMUNICATIONS CORP. - MD 236   2010-03-01   
443-558 5 Aberdeen MD   9212 VERIZON MARYLAND, INC. 236   2010-05-10   
443-558 6 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2010-12-02   
443-558 7 Aberdeen MD   4773 XO MARYLAND, LLC 236      
443-558 8 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2010-12-02   

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

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