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: 393

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-393 A Millersville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
667-393 0 Millersville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-04-15   
667-393 2 Millersville MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238   2022-04-16   
667-393 3 Millersville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-10-16   
667-393 8 Millersville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-10-21   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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