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: 656

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-656 A Edgewood MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-656 0 Edgewood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-08-23   
667-656 1 Edgewood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-08-23   
667-656 2 Edgewood MD   876D ONVOY, LLC - MD 238   2021-09-23   
667-656 3 Edgewood MD   876D ONVOY, LLC - MD 238   2021-09-23   
667-656 4 Edgewood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-10-23   
667-656 5 Edgewood MD   876D ONVOY, LLC - MD 238   2021-12-19   
667-656 6 Edgewood MD   624H ONVOY SPECTRUM, LLC 238   2021-07-26   
667-656 7 Edgewood MD   624H ONVOY SPECTRUM, LLC 238   2022-01-27   
667-656 8 Edgewood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-12-16   
667-656 9 Edgewood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-12-16   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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