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
443-335 3 Brooklyn Park-Linthicum MD   4773 XO MARYLAND, LLC 238      
443-335 4 Brooklyn Park-Linthicum MD   5562 METRO PCS, INC. 238   2019-10-13   
443-335 5 Brooklyn Park-Linthicum MD   5562 METRO PCS, INC. 238   2020-01-24   
443-336 A Annapolis MD   6664 SPRINT SPECTRUM L.P. 238      
443-337 A Sparrows Point MD   2593 CORE COMMUNICATIONS, INC. - MD 238      
443-337 1 Sparrows Point MD   5562 METRO PCS, INC. 238   2019-10-13   
443-337 2 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-03-29   
443-337 3 Sparrows Point MD   5562 METRO PCS, INC. 238   2017-10-01   
443-337 4 Sparrows Point MD   5562 METRO PCS, INC. 238   2018-01-06   
443-337 5 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-337 6 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-337 7 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-337 8 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-03-29   
443-337 9 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-07-31   
443-338 A Sparks-Glencoe MD   2697 CTC COMMUNICATIONS CORP. - MD 238      
443-338 0 Sparks-Glencoe MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-06-07   
443-338 1 Sparks-Glencoe MD   082H LOCAL ACCESS LLC - MD 238   2015-03-21   
443-338 2 Sparks-Glencoe MD   2697 CTC COMMUNICATIONS CORP. - MD 238      
443-338 3 Sparks-Glencoe MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-07-06   
443-338 4 Sparks-Glencoe MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2015-08-06   
443-338 5 Sparks-Glencoe MD   082H LOCAL ACCESS LLC - MD 238   2016-05-31   
443-338 6 Sparks-Glencoe MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2017-02-27   
443-338 7 Sparks-Glencoe MD   7575 CENTURYLINK COMMUNICATIONS LLC 238   2014-06-25   
443-338 8 Sparks-Glencoe MD   876D ONVOY, LLC - MD 238   2016-03-26   
443-338 9 Sparks-Glencoe MD   876D ONVOY, LLC - MD 238   2016-03-26   
443-339 A Sherwood Forest MD   2697 CTC COMMUNICATIONS CORP. - MD 238      
443-339 0 Sherwood Forest MD   073H TELNYX LLC 238   2017-04-26   
443-339 1 Sherwood Forest MD   2697 CTC COMMUNICATIONS CORP. - MD 238      
443-339 3 Sherwood Forest MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-22   
443-339 4 Sherwood Forest MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-22   
443-339 5 Sherwood Forest MD   876D ONVOY, LLC - MD 238   2016-03-18   
443-339 6 Sherwood Forest MD   876D ONVOY, LLC - MD 238   2016-03-18   
443-339 7 Sherwood Forest MD   7575 CENTURYLINK COMMUNICATIONS LLC 238   2014-06-12   
443-339 8 Sherwood Forest MD   876D ONVOY, LLC - MD 238   2014-09-27   
443-339 9 Sherwood Forest MD   876D ONVOY, LLC - MD 238   2014-09-27   
443-340 A Westminster MD WDLWMDEMCM3  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-341 A Catonsville MD BLTMMDSNRS0  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-341 0 Catonsville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-341 1 Catonsville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-341 2 Catonsville MD   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
443-341 3 Catonsville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2004-03-29   
443-341 4 Catonsville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2003-02-20   
443-341 5 Catonsville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2004-12-27   
443-341 6 Catonsville MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2005-03-10   
443-341 7 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-03-19   
443-341 8 Catonsville MD   1958 ATX TELECOMMUNICATIONS SERVICES, LTD 238   2004-03-27   
443-341 9 Catonsville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-342 A Solomons MD   2697 CTC COMMUNICATIONS CORP. - MD 238      
443-342 1 Solomons MD   2697 CTC COMMUNICATIONS CORP. - MD 238      
443-342 2 Solomons MD   876D ONVOY, LLC - MD 238   2016-04-04   

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Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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