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
443-655 A Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-655 0 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-655 1 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-655 2 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-655 3 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-655 4 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-655 5 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-655 6 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-655 7 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-655 8 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-03-20   
443-655 9 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-03-20   
443-656 A Columbia MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-656 0 Columbia MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-656 3 Columbia MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-656 4 Columbia MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-656 6 Columbia MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-656 7 Columbia MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-656 8 Columbia MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-657 A Randallstown MD LARLMDCC1MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-657 0 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2014-11-08   
443-657 1 Randallstown MD   082H LOCAL ACCESS LLC - MD 238   2016-10-14   
443-657 2 Randallstown MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-657 3 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2014-11-08   
443-657 4 Randallstown MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-657 5 Randallstown MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-657 6 Randallstown MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-657 7 Randallstown MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2015-11-14   
443-657 8 Randallstown MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-657 9 Randallstown MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-658 A Woodlawn MD   876D ONVOY, LLC - MD 238      
443-659 A West River MD   876D ONVOY, LLC - MD 238      
443-660 A Pikesville MD WHMRMDATPS0  107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238      
443-660 0 Pikesville MD   082H LOCAL ACCESS LLC - MD 238   2013-09-06   
443-660 1 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2005-06-05   
443-660 2 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2005-06-05   
443-660 3 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2005-06-05   
443-660 5 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2005-06-05   
443-660 6 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-09-24   
443-660 7 Pikesville MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2012-09-21   
443-660 8 Pikesville MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2006-06-03   
443-660 9 Pikesville MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238      
443-661 A Waterloo MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-661 0 Waterloo MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-661 1 Waterloo MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-661 2 Waterloo MD   082H LOCAL ACCESS LLC - MD 238   2017-07-07   
443-661 3 Waterloo MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-661 4 Waterloo MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2008-10-06   
443-661 5 Waterloo MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-661 7 Waterloo MD   321J HD CARRIER LLC 238   2020-05-02   
443-662 A Sparks-Glencoe MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      

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Last updated: Sun, 31 May 2020 11:59:01 UTC

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