Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 395

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-395 A Cardiff MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
667-395 0 Cardiff MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-04-23   
667-395 1 Cardiff MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-04-24   
667-395 2 Cardiff MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2025-08-11   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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