Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 672

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-672 A Parkton MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-672 0 Parkton MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-672 1 Parkton MD CLMAMDJTBMD  2589 US LEC OF MARYLAND, INC. 238      
443-672 2 Parkton MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-672 3 Parkton MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-672 4 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-672 5 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-672 6 Parkton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-672 7 Parkton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-672 8 Parkton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-672 9 Parkton MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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