Local Calling Guide

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

NXX: 843

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-843 A Havre de Grace MD HDGRMDHVDS0  9212 VERIZON MARYLAND, INC. 238      
443-843 0 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-07   
443-843 1 Havre de Grace MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-843 2 Havre de Grace MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-843 3 Havre de Grace MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238   2011-12-16   
443-843 4 Havre de Grace MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-843 5 Havre de Grace MD HDGRMDHVDS0  9212 VERIZON MARYLAND, INC. 238      
443-843 6 Havre de Grace MD HDGRMDHVDS0  9212 VERIZON MARYLAND, INC. 238      
443-843 7 Havre de Grace MD HDGRMDHVDS0  9212 VERIZON MARYLAND, INC. 238      
443-843 8 Havre de Grace MD HDGRMDHVDS0  9212 VERIZON MARYLAND, INC. 238      
443-843 9 Havre de Grace MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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