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
443-392 5 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2003-10-11   
443-392 6 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2003-10-11   
443-392 7 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2004-06-10   
443-392 8 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2004-06-18   
443-392 9 Baltimore MD   7421 AT&T LOCAL 238      
443-393 A Columbia MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-393 0 Columbia MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-393 1 Columbia MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-393 2 Columbia MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-09-10   
443-393 3 Columbia MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-09-10   
443-393 4 Columbia MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-393 5 Columbia MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-393 6 Columbia MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-05-08   
443-393 7 Columbia MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2011-04-03   
443-393 8 Columbia MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-393 9 Columbia MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-394 A Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
443-395 A Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-395 0 Aberdeen MD   9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-395 1 Aberdeen MD   9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-395 2 Aberdeen MD   9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-395 3 Aberdeen MD   9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-395 4 Aberdeen MD   9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-395 5 Aberdeen MD   9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-395 6 Aberdeen MD   9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-395 7 Aberdeen MD   9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-395 8 Aberdeen MD   9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-395 9 Aberdeen MD   9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-396 A Odenton MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-396 0 Odenton MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-396 1 Odenton MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-396 2 Odenton MD   876D ONVOY, LLC - MD 238   2012-10-07   
443-396 3 Odenton MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-03-07   
443-396 4 Odenton MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-396 5 Odenton MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-396 6 Odenton MD   082H LOCAL ACCESS LLC - MD 238   2017-07-07   
443-396 7 Odenton MD   876D ONVOY, LLC - MD 238   2018-05-27   
443-396 8 Odenton MD   073H TELNYX LLC 238   2017-04-26   
443-396 9 Odenton MD   5562 METRO PCS, INC. 238   2020-04-02   
443-397 A Salisbury MD SLBRMDAZCM2  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-06-06   
443-397 0 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-06-06   
443-397 1 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-03-13   
443-397 2 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-09-03   
443-397 3 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-10-02   
443-397 4 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-10-14   
443-397 5 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-10-14   
443-397 6 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-01-16   
443-397 7 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-08-01   
443-397 8 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-02-16   
443-397 9 Salisbury MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2010-03-28   

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

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