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
443-443 0 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238   2024-01-22   
443-443 1 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238   2024-01-22   
443-443 2 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238   2024-01-22   
443-443 3 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238   2024-01-22   
443-443 4 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238   2024-01-22   
443-444 A Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
443-444 0 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238   2005-08-27   
443-444 1 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238   2005-08-27   
443-444 2 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238   2005-08-27   
443-444 3 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238   2005-08-27   
443-444 4 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238   2005-08-27   
443-444 5 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238   2005-08-27   
443-444 6 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238   2005-08-27   
443-444 7 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238   2005-08-27   
443-444 8 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238   2005-08-27   
443-444 9 Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238   2005-08-27   
443-445 A Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
443-445 0 Elkridge MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-25   
443-445 1 Elkridge MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2015-04-17   
443-445 2 Elkridge MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-06-26   
443-445 3 Elkridge MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-445 4 Elkridge MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238   2005-02-15   
443-445 5 Elkridge MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238   2005-02-15   
443-445 6 Elkridge MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238   2005-02-15   
443-445 7 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238   2004-02-16   
443-445 8 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238   2004-02-16   
443-445 9 Elkridge MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2001-11-19   
443-446 A Queenstown MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242      
443-446 1 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-03   
443-446 2 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
443-446 3 Queenstown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-03-05   
443-446 4 Queenstown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2018-09-13   
443-446 5 Queenstown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-03-05   
443-446 6 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
443-446 7 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
443-446 8 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-03   
443-446 9 Queenstown MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-03   
443-447 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-447 0 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-03-31   
443-447 1 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-04-01   
443-447 2 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-04-01   
443-447 3 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-04-01   
443-447 4 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-04-01   
443-447 5 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-04-01   
443-447 6 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-04-01   
443-447 7 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-04-01   
443-447 8 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-04-01   
443-447 9 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-04-01   
443-448 A Denton MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242      
443-448 1 Denton MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-03-05   

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Last updated: Wed, 07 Feb 2024 04:12:25 UTC

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