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
443-660 A Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2021-01-13   
443-660 0 Pikesville MD BLTQMD010MD  082H LOCAL ACCESS LLC - MD 238   2013-09-06   
443-660 1 Pikesville MD BLTOMDKHDS0  7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2005-06-05   
443-660 2 Pikesville MD BLTOMDKHDS0  7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2005-06-05   
443-660 3 Pikesville MD BLTOMDKHDS0  7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2005-06-05   
443-660 5 Pikesville MD BLTOMDKHDS0  7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2005-06-05   
443-660 6 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-09-24   
443-660 7 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2012-09-21   
443-660 8 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2006-06-03   
443-660 9 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238      
443-661 A Waterloo MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-661 0 Waterloo MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-661 1 Waterloo MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-661 2 Waterloo MD BLTMMDCHLMD  082H LOCAL ACCESS LLC - MD 238   2017-07-07   
443-661 3 Waterloo MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-661 4 Waterloo MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2008-10-06   
443-661 5 Waterloo MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-661 6 Waterloo MD   145J TERRA NOVA TELECOM INC. 238   2021-01-28   
443-661 7 Waterloo MD BLTMMDCHXVX  321J HD CARRIER LLC 238   2020-05-02   
443-662 A Sparks-Glencoe MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-662 0 Sparks-Glencoe MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-662 1 Sparks-Glencoe MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-662 2 Sparks-Glencoe MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-662 3 Sparks-Glencoe MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-662 4 Sparks-Glencoe MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2004-07-24   
443-662 5 Sparks-Glencoe MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-07-03   
443-662 6 Sparks-Glencoe MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-662 7 Sparks-Glencoe MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-662 8 Sparks-Glencoe MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-662 9 Sparks-Glencoe MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-663 A Woodlawn MD WDLWMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
443-663 0 Woodlawn MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-20   
443-663 1 Woodlawn MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238   2013-11-04   
443-663 2 Woodlawn MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC. - MD 238   2019-05-02   
443-663 3 Woodlawn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-14   
443-663 4 Woodlawn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2015-10-05   
443-663 5 Woodlawn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-14   
443-663 6 Woodlawn MD WDLWMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
443-663 7 Woodlawn MD   508J CENTURYLINK COMMUNICATIONS LLC 238   2014-06-25   
443-663 8 Woodlawn MD WDLWMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
443-663 9 Woodlawn MD BLTMMDCHLMD  082H LOCAL ACCESS LLC - MD 238   2016-05-31   
443-664 A Ocean City MD SLBRMDSBDC0  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-664 0 Ocean City MD SLBRMDSBDC0  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-664 1 Ocean City MD SLBRMDSBDC0  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-664 2 Ocean City MD SLBRMDSBXLX  318J COMCAST IP PHONE LLC 242   2008-04-30   
443-664 3 Ocean City MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-08-09   
443-664 4 Ocean City MD SLBRMDSBDC0  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-664 5 Ocean City MD SLBRMDSBXLX  318J COMCAST IP PHONE LLC 242   2012-05-25   
443-664 6 Ocean City MD SLBRMDSBXLX  318J COMCAST IP PHONE LLC 242   2006-07-31   
443-664 7 Ocean City MD SLBRMDSBXLX  318J COMCAST IP PHONE LLC 242   2014-11-17   

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

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