Local Calling Guide

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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 441

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-441 A Glenwood MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-441 0 Glenwood MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-441 1 Glenwood MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-441 2 Glenwood MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2016-10-16   
443-441 3 Glenwood MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-441 4 Glenwood MD   145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-441 5 Glenwood MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2018-01-22   
443-441 6 Glenwood MD   876D ONVOY, LLC - MD 238   2024-04-21   
443-441 7 Glenwood MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-12   
443-441 8 Glenwood MD   515J IP HORIZON LLC 238   2016-05-31   
443-441 9 Glenwood MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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