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: 483

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-483 A Cardiff MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-483 0 Cardiff MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-483 1 Cardiff MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-483 2 Cardiff MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-483 3 Cardiff MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-483 4 Cardiff MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-483 5 Cardiff MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
443-483 6 Cardiff MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-483 7 Cardiff MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-483 8 Cardiff MD   145J TERRA NOVA TELECOM INC. 238      
443-483 9 Cardiff MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      

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

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