Local Calling Guide

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

NXX: 778

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-778 A Sparrows Point MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-778 0 Sparrows Point MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-12-04   
667-778 1 Sparrows Point MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-10-22   
667-778 2 Sparrows Point MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-12   
667-778 3 Sparrows Point MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-12   
667-778 4 Sparrows Point MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-10-16   
667-778 5 Sparrows Point MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-03-20   
667-778 6 Sparrows Point MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-02-03   
667-778 7 Sparrows Point MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-06-27   
667-778 8 Sparrows Point MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-02-03   
667-778 9 Sparrows Point MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-02-25   

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

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