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: 606

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-606 A Fork MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-606 0 Fork MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-606 1 Fork MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-606 2 Fork MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-606 3 Fork MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-606 4 Fork MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-606 6 Fork MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-606 8 Fork MD BLTMMDCHX7X  073H TELNYX LLC 238      
443-606 9 Fork MD   515J IP HORIZON LLC 238      

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

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